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Finding the Fourth Proportional to 15,684,326,538.80, 22,013,156,957.20 and 15,684,326,538.80

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Solution

The fourth proportional to 15,684,326,538.80, 22,013,156,957.20 and 15,684,326,538.80 is: 22,013,156,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684,326,538.80 : 22,013,156,957.20 = 15,684,326,538.80 : x
  2. Step 2: Convert to fraction form
    15,684,326,538.80/22,013,156,957.20 = 15,684,326,538.80/x
  3. Step 3: Cross multiply
    15,684,326,538.80x = 22,013,156,957.20 × 15,684,326,538.80
  4. Step 4: Simplify right side
    15,684,326,538.80x = 345,261,541,866,581,786,624
  5. Step 5: Solve for x
    x = 345,261,541,866,581,786,624/15,684,326,538.80
  6. Step 6: Final answer
    x = 22,013,156,957.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.