Home / 912,541,106.72-1,259,307,062.96-494,853,281.28

Finding the Fourth Proportional to 912,541,106.72, 1,259,307,062.96 and 494,853,281.28

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Solution

The fourth proportional to 912,541,106.72, 1,259,307,062.96 and 494,853,281.28 is: 682,897,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,541,106.72 : 1,259,307,062.96 = 494,853,281.28 : x
  2. Step 2: Convert to fraction form
    912,541,106.72/1,259,307,062.96 = 494,853,281.28/x
  3. Step 3: Cross multiply
    912,541,106.72x = 1,259,307,062.96 × 494,853,281.28
  4. Step 4: Simplify right side
    912,541,106.72x = 623,172,232,244,835,584
  5. Step 5: Solve for x
    x = 623,172,232,244,835,584/912,541,106.72
  6. Step 6: Final answer
    x = 682,897,710.20

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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.