Home / 912,070,395.72-1,258,623,426.15-494,373,712.95

Finding the Fourth Proportional to 912,070,395.72, 1,258,623,426.15 and 494,373,712.95

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Solution

The fourth proportional to 912,070,395.72, 1,258,623,426.15 and 494,373,712.95 is: 682,217,446.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,070,395.72 : 1,258,623,426.15 = 494,373,712.95 : x
  2. Step 2: Convert to fraction form
    912,070,395.72/1,258,623,426.15 = 494,373,712.95/x
  3. Step 3: Cross multiply
    912,070,395.72x = 1,258,623,426.15 × 494,373,712.95
  4. Step 4: Simplify right side
    912,070,395.72x = 622,230,336,391,625,600
  5. Step 5: Solve for x
    x = 622,230,336,391,625,600/912,070,395.72
  6. Step 6: Final answer
    x = 682,217,446.49

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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.