Home / 687,744,272.40-1,031,616,408.60-551,695,376.40

Finding the Fourth Proportional to 687,744,272.40, 1,031,616,408.60 and 551,695,376.40

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Solution

The fourth proportional to 687,744,272.40, 1,031,616,408.60 and 551,695,376.40 is: 827,543,064.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,744,272.40 : 1,031,616,408.60 = 551,695,376.40 : x
  2. Step 2: Convert to fraction form
    687,744,272.40/1,031,616,408.60 = 551,695,376.40/x
  3. Step 3: Cross multiply
    687,744,272.40x = 1,031,616,408.60 × 551,695,376.40
  4. Step 4: Simplify right side
    687,744,272.40x = 569,138,002,842,993,216
  5. Step 5: Solve for x
    x = 569,138,002,842,993,216/687,744,272.40
  6. Step 6: Final answer
    x = 827,543,064.60

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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.