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Finding the Fourth Proportional to 10,178,415,686.80, 15,246,124,445.40 and 10,178,415,686.80

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Solution

The fourth proportional to 10,178,415,686.80, 15,246,124,445.40 and 10,178,415,686.80 is: 15,246,124,445.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178,415,686.80 : 15,246,124,445.40 = 10,178,415,686.80 : x
  2. Step 2: Convert to fraction form
    10,178,415,686.80/15,246,124,445.40 = 10,178,415,686.80/x
  3. Step 3: Cross multiply
    10,178,415,686.80x = 15,246,124,445.40 × 10,178,415,686.80
  4. Step 4: Simplify right side
    10,178,415,686.80x = 155,181,392,217,964,281,856
  5. Step 5: Solve for x
    x = 155,181,392,217,964,281,856/10,178,415,686.80
  6. Step 6: Final answer
    x = 15,246,124,445.40

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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.