Home / 12,840,001.70-19,260,002.55-4,317,505.70

Finding the Fourth Proportional to 12,840,001.70, 19,260,002.55 and 4,317,505.70

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Solution

The fourth proportional to 12,840,001.70, 19,260,002.55 and 4,317,505.70 is: 6,476,258.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,840,001.70 : 19,260,002.55 = 4,317,505.70 : x
  2. Step 2: Convert to fraction form
    12,840,001.70/19,260,002.55 = 4,317,505.70/x
  3. Step 3: Cross multiply
    12,840,001.70x = 19,260,002.55 × 4,317,505.70
  4. Step 4: Simplify right side
    12,840,001.70x = 83,155,170,791,639.55
  5. Step 5: Solve for x
    x = 83,155,170,791,639.55/12,840,001.70
  6. Step 6: Final answer
    x = 6,476,258.55

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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.