Home / 715,678,929.90-1,073,398,809.65-198,161,684.10

Finding the Fourth Proportional to 715,678,929.90, 1,073,398,809.65 and 198,161,684.10

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Solution

The fourth proportional to 715,678,929.90, 1,073,398,809.65 and 198,161,684.10 is: 297,209,414.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,678,929.90 : 1,073,398,809.65 = 198,161,684.10 : x
  2. Step 2: Convert to fraction form
    715,678,929.90/1,073,398,809.65 = 198,161,684.10/x
  3. Step 3: Cross multiply
    715,678,929.90x = 1,073,398,809.65 × 198,161,684.10
  4. Step 4: Simplify right side
    715,678,929.90x = 212,706,515,831,179,328
  5. Step 5: Solve for x
    x = 212,706,515,831,179,328/715,678,929.90
  6. Step 6: Final answer
    x = 297,209,414.65

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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.