Home / 125,980,987.66-188,903,099.13-56,812,862.05

Finding the Fourth Proportional to 125,980,987.66, 188,903,099.13 and 56,812,862.05

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Solution

The fourth proportional to 125,980,987.66, 188,903,099.13 and 56,812,862.05 is: 85,188,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,980,987.66 : 188,903,099.13 = 56,812,862.05 : x
  2. Step 2: Convert to fraction form
    125,980,987.66/188,903,099.13 = 56,812,862.05/x
  3. Step 3: Cross multiply
    125,980,987.66x = 188,903,099.13 × 56,812,862.05
  4. Step 4: Simplify right side
    125,980,987.66x = 10,732,125,711,690,164
  5. Step 5: Solve for x
    x = 10,732,125,711,690,164/125,980,987.66
  6. Step 6: Final answer
    x = 85,188,455.11

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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.