Home / 656,546,657.62-984,818,772.15-213,888,808.90

Finding the Fourth Proportional to 656,546,657.62, 984,818,772.15 and 213,888,808.90

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Solution

The fourth proportional to 656,546,657.62, 984,818,772.15 and 213,888,808.90 is: 320,832,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,546,657.62 : 984,818,772.15 = 213,888,808.90 : x
  2. Step 2: Convert to fraction form
    656,546,657.62/984,818,772.15 = 213,888,808.90/x
  3. Step 3: Cross multiply
    656,546,657.62x = 984,818,772.15 × 213,888,808.90
  4. Step 4: Simplify right side
    656,546,657.62x = 210,641,714,160,710,432
  5. Step 5: Solve for x
    x = 210,641,714,160,710,432/656,546,657.62
  6. Step 6: Final answer
    x = 320,832,817.77

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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.