Home / 128,998,417.60-181,107,968-128,998,417.60

Finding the Fourth Proportional to 128,998,417.60, 181,107,968 and 128,998,417.60

Calculator

Solution

The fourth proportional to 128,998,417.60, 181,107,968 and 128,998,417.60 is: 181,107,968

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,998,417.60 : 181,107,968 = 128,998,417.60 : x
  2. Step 2: Convert to fraction form
    128,998,417.60/181,107,968 = 128,998,417.60/x
  3. Step 3: Cross multiply
    128,998,417.60x = 181,107,968 × 128,998,417.60
  4. Step 4: Simplify right side
    128,998,417.60x = 23,362,641,286,751,436
  5. Step 5: Solve for x
    x = 23,362,641,286,751,436/128,998,417.60
  6. Step 6: Final answer
    x = 181,107,968

Related Problems

Find fourth proportional to 64,499,208.80, 90,553,984 and 64,499,208.80
Half scale
Find fourth proportional to 257,996,835.20, 362,215,936 and 257,996,835.20
Double scale
Find fourth proportional to 128,998,418.60, 181,107,969.40 and 128,998,418.60
Similar ratio
Find fourth proportional to 193,497,626.40, 271,661,952 and 193,497,626.40
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.