Home / 788,531,491.70-1,182,797,237.55-663,696,000.80

Finding the Fourth Proportional to 788,531,491.70, 1,182,797,237.55 and 663,696,000.80

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Solution

The fourth proportional to 788,531,491.70, 1,182,797,237.55 and 663,696,000.80 is: 995,544,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,531,491.70 : 1,182,797,237.55 = 663,696,000.80 : x
  2. Step 2: Convert to fraction form
    788,531,491.70/1,182,797,237.55 = 663,696,000.80/x
  3. Step 3: Cross multiply
    788,531,491.70x = 1,182,797,237.55 × 663,696,000.80
  4. Step 4: Simplify right side
    788,531,491.70x = 785,017,796,319,222,528
  5. Step 5: Solve for x
    x = 785,017,796,319,222,528/788,531,491.70
  6. Step 6: Final answer
    x = 995,544,001.20

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Double scale
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Similar ratio
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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.