Home / 127,704,030.80-191,556,046.20-120,649,643.60

Finding the Fourth Proportional to 127,704,030.80, 191,556,046.20 and 120,649,643.60

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Solution

The fourth proportional to 127,704,030.80, 191,556,046.20 and 120,649,643.60 is: 180,974,465.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,704,030.80 : 191,556,046.20 = 120,649,643.60 : x
  2. Step 2: Convert to fraction form
    127,704,030.80/191,556,046.20 = 120,649,643.60/x
  3. Step 3: Cross multiply
    127,704,030.80x = 191,556,046.20 × 120,649,643.60
  4. Step 4: Simplify right side
    127,704,030.80x = 23,111,168,703,455,132
  5. Step 5: Solve for x
    x = 23,111,168,703,455,132/127,704,030.80
  6. Step 6: Final answer
    x = 180,974,465.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.