Home / 125,980,988.66-188,903,100.63-56,812,863.05

Finding the Fourth Proportional to 125,980,988.66, 188,903,100.63 and 56,812,863.05

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Solution

The fourth proportional to 125,980,988.66, 188,903,100.63 and 56,812,863.05 is: 85,188,456.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,980,988.66 : 188,903,100.63 = 56,812,863.05 : x
  2. Step 2: Convert to fraction form
    125,980,988.66/188,903,100.63 = 56,812,863.05/x
  3. Step 3: Cross multiply
    125,980,988.66x = 188,903,100.63 × 56,812,863.05
  4. Step 4: Simplify right side
    125,980,988.66x = 10,732,125,985,812,558
  5. Step 5: Solve for x
    x = 10,732,125,985,812,558/125,980,988.66
  6. Step 6: Final answer
    x = 85,188,456.61

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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.