Home / 388,460,444.10-582,690,666.15-266,016,437.70

Finding the Fourth Proportional to 388,460,444.10, 582,690,666.15 and 266,016,437.70

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Solution

The fourth proportional to 388,460,444.10, 582,690,666.15 and 266,016,437.70 is: 399,024,656.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,460,444.10 : 582,690,666.15 = 266,016,437.70 : x
  2. Step 2: Convert to fraction form
    388,460,444.10/582,690,666.15 = 266,016,437.70/x
  3. Step 3: Cross multiply
    388,460,444.10x = 582,690,666.15 × 266,016,437.70
  4. Step 4: Simplify right side
    388,460,444.10x = 155,005,295,290,262,976
  5. Step 5: Solve for x
    x = 155,005,295,290,262,976/388,460,444.10
  6. Step 6: Final answer
    x = 399,024,656.55

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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.