Home / 155,847,510.27-215,069,816.12-86,235,825.15

Finding the Fourth Proportional to 155,847,510.27, 215,069,816.12 and 86,235,825.15

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Solution

The fourth proportional to 155,847,510.27, 215,069,816.12 and 86,235,825.15 is: 119,005,578.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,847,510.27 : 215,069,816.12 = 86,235,825.15 : x
  2. Step 2: Convert to fraction form
    155,847,510.27/215,069,816.12 = 86,235,825.15/x
  3. Step 3: Cross multiply
    155,847,510.27x = 215,069,816.12 × 86,235,825.15
  4. Step 4: Simplify right side
    155,847,510.27x = 18,546,723,057,966,972
  5. Step 5: Solve for x
    x = 18,546,723,057,966,972/155,847,510.27
  6. Step 6: Final answer
    x = 119,005,578.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.