Home / 910,880,809.62-1,257,016,110.40-493,193,377.86

Finding the Fourth Proportional to 910,880,809.62, 1,257,016,110.40 and 493,193,377.86

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Solution

The fourth proportional to 910,880,809.62, 1,257,016,110.40 and 493,193,377.86 is: 680,607,182.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,880,809.62 : 1,257,016,110.40 = 493,193,377.86 : x
  2. Step 2: Convert to fraction form
    910,880,809.62/1,257,016,110.40 = 493,193,377.86/x
  3. Step 3: Cross multiply
    910,880,809.62x = 1,257,016,110.40 × 493,193,377.86
  4. Step 4: Simplify right side
    910,880,809.62x = 619,952,021,512,614,784
  5. Step 5: Solve for x
    x = 619,952,021,512,614,784/910,880,809.62
  6. Step 6: Final answer
    x = 680,607,182.59

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Double scale
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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.