Home / 83,242,899.60-124,864,349.40-81,808,008.90

Finding the Fourth Proportional to 83,242,899.60, 124,864,349.40 and 81,808,008.90

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Solution

The fourth proportional to 83,242,899.60, 124,864,349.40 and 81,808,008.90 is: 122,712,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,242,899.60 : 124,864,349.40 = 81,808,008.90 : x
  2. Step 2: Convert to fraction form
    83,242,899.60/124,864,349.40 = 81,808,008.90/x
  3. Step 3: Cross multiply
    83,242,899.60x = 124,864,349.40 × 81,808,008.90
  4. Step 4: Simplify right side
    83,242,899.60x = 10,214,903,807,007,910
  5. Step 5: Solve for x
    x = 10,214,903,807,007,910/83,242,899.60
  6. Step 6: Final answer
    x = 122,712,013.35

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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.