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Finding the Fourth Proportional to 580,640,680.80, 870,961,021.20 and 576,609,602.40

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Solution

The fourth proportional to 580,640,680.80, 870,961,021.20 and 576,609,602.40 is: 864,914,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,640,680.80 : 870,961,021.20 = 576,609,602.40 : x
  2. Step 2: Convert to fraction form
    580,640,680.80/870,961,021.20 = 576,609,602.40/x
  3. Step 3: Cross multiply
    580,640,680.80x = 870,961,021.20 × 576,609,602.40
  4. Step 4: Simplify right side
    580,640,680.80x = 502,204,488,140,029,952
  5. Step 5: Solve for x
    x = 502,204,488,140,029,952/580,640,680.80
  6. Step 6: Final answer
    x = 864,914,403.60

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.