Home / 39,142,807.80-58,723,542.90-18,931,428.60

Finding the Fourth Proportional to 39,142,807.80, 58,723,542.90 and 18,931,428.60

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Solution

The fourth proportional to 39,142,807.80, 58,723,542.90 and 18,931,428.60 is: 28,401,655.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142,807.80 : 58,723,542.90 = 18,931,428.60 : x
  2. Step 2: Convert to fraction form
    39,142,807.80/58,723,542.90 = 18,931,428.60/x
  3. Step 3: Cross multiply
    39,142,807.80x = 58,723,542.90 × 18,931,428.60
  4. Step 4: Simplify right side
    39,142,807.80x = 1,111,720,559,550,387
  5. Step 5: Solve for x
    x = 1,111,720,559,550,387/39,142,807.80
  6. Step 6: Final answer
    x = 28,401,655.94

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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.