Home / 40,840,984.80-61,261,477.20-20,643,602.40

Finding the Fourth Proportional to 40,840,984.80, 61,261,477.20 and 20,643,602.40

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Solution

The fourth proportional to 40,840,984.80, 61,261,477.20 and 20,643,602.40 is: 30,965,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,840,984.80 : 61,261,477.20 = 20,643,602.40 : x
  2. Step 2: Convert to fraction form
    40,840,984.80/61,261,477.20 = 20,643,602.40/x
  3. Step 3: Cross multiply
    40,840,984.80x = 61,261,477.20 × 20,643,602.40
  4. Step 4: Simplify right side
    40,840,984.80x = 1,264,657,577,753,465.25
  5. Step 5: Solve for x
    x = 1,264,657,577,753,465.25/40,840,984.80
  6. Step 6: Final answer
    x = 30,965,403.60

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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.