Home / 715,678,862.90-1,073,398,709.15-198,161,617.10

Finding the Fourth Proportional to 715,678,862.90, 1,073,398,709.15 and 198,161,617.10

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Solution

The fourth proportional to 715,678,862.90, 1,073,398,709.15 and 198,161,617.10 is: 297,209,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,678,862.90 : 1,073,398,709.15 = 198,161,617.10 : x
  2. Step 2: Convert to fraction form
    715,678,862.90/1,073,398,709.15 = 198,161,617.10/x
  3. Step 3: Cross multiply
    715,678,862.90x = 1,073,398,709.15 × 198,161,617.10
  4. Step 4: Simplify right side
    715,678,862.90x = 212,706,423,998,216,544
  5. Step 5: Solve for x
    x = 212,706,423,998,216,544/715,678,862.90
  6. Step 6: Final answer
    x = 297,209,314.16

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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.