Home / 80,762,612.40-121,161,633.30-39,841,655.40

Finding the Fourth Proportional to 80,762,612.40, 121,161,633.30 and 39,841,655.40

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Solution

The fourth proportional to 80,762,612.40, 121,161,633.30 and 39,841,655.40 is: 59,771,222.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,762,612.40 : 121,161,633.30 = 39,841,655.40 : x
  2. Step 2: Convert to fraction form
    80,762,612.40/121,161,633.30 = 39,841,655.40/x
  3. Step 3: Cross multiply
    80,762,612.40x = 121,161,633.30 × 39,841,655.40
  4. Step 4: Simplify right side
    80,762,612.40x = 4,827,280,041,639,765
  5. Step 5: Solve for x
    x = 4,827,280,041,639,765/80,762,612.40
  6. Step 6: Final answer
    x = 59,771,222.08

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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.