Home / 912,070,385.72-1,258,623,412.34-494,373,702.96

Finding the Fourth Proportional to 912,070,385.72, 1,258,623,412.34 and 494,373,702.96

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Solution

The fourth proportional to 912,070,385.72, 1,258,623,412.34 and 494,373,702.96 is: 682,217,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,070,385.72 : 1,258,623,412.34 = 494,373,702.96 : x
  2. Step 2: Convert to fraction form
    912,070,385.72/1,258,623,412.34 = 494,373,702.96/x
  3. Step 3: Cross multiply
    912,070,385.72x = 1,258,623,412.34 × 494,373,702.96
  4. Step 4: Simplify right side
    912,070,385.72x = 622,230,316,990,676,736
  5. Step 5: Solve for x
    x = 622,230,316,990,676,736/912,070,385.72
  6. Step 6: Final answer
    x = 682,217,432.70

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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.