Home / 12,357,411.90-18,536,117.85-10,656,800.70

Finding the Fourth Proportional to 12,357,411.90, 18,536,117.85 and 10,656,800.70

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Solution

The fourth proportional to 12,357,411.90, 18,536,117.85 and 10,656,800.70 is: 15,985,201.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,357,411.90 : 18,536,117.85 = 10,656,800.70 : x
  2. Step 2: Convert to fraction form
    12,357,411.90/18,536,117.85 = 10,656,800.70/x
  3. Step 3: Cross multiply
    12,357,411.90x = 18,536,117.85 × 10,656,800.70
  4. Step 4: Simplify right side
    12,357,411.90x = 197,535,713,679,162.50
  5. Step 5: Solve for x
    x = 197,535,713,679,162.50/12,357,411.90
  6. Step 6: Final answer
    x = 15,985,201.05

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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.