Home / 912,503,927.20-1,367,748,121.20-503,853,354.40

Finding the Fourth Proportional to 912,503,927.20, 1,367,748,121.20 and 503,853,354.40

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Solution

The fourth proportional to 912,503,927.20, 1,367,748,121.20 and 503,853,354.40 is: 755,223,575.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,503,927.20 : 1,367,748,121.20 = 503,853,354.40 : x
  2. Step 2: Convert to fraction form
    912,503,927.20/1,367,748,121.20 = 503,853,354.40/x
  3. Step 3: Cross multiply
    912,503,927.20x = 1,367,748,121.20 × 503,853,354.40
  4. Step 4: Simplify right side
    912,503,927.20x = 689,144,478,840,917,760
  5. Step 5: Solve for x
    x = 689,144,478,840,917,760/912,503,927.20
  6. Step 6: Final answer
    x = 755,223,575.81

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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.