Home / 912,541,104.72-1,259,307,060.20-494,853,279.28

Finding the Fourth Proportional to 912,541,104.72, 1,259,307,060.20 and 494,853,279.28

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Solution

The fourth proportional to 912,541,104.72, 1,259,307,060.20 and 494,853,279.28 is: 682,897,707.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,541,104.72 : 1,259,307,060.20 = 494,853,279.28 : x
  2. Step 2: Convert to fraction form
    912,541,104.72/1,259,307,060.20 = 494,853,279.28/x
  3. Step 3: Cross multiply
    912,541,104.72x = 1,259,307,060.20 × 494,853,279.28
  4. Step 4: Simplify right side
    912,541,104.72x = 623,172,228,360,426,368
  5. Step 5: Solve for x
    x = 623,172,228,360,426,368/912,541,104.72
  6. Step 6: Final answer
    x = 682,897,707.44

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Double scale
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1.5x scale

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.