Home / 19,155,711.60-28,708,616.14-7,782,864.48

Finding the Fourth Proportional to 19,155,711.60, 28,708,616.14 and 7,782,864.48

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Solution

The fourth proportional to 19,155,711.60, 28,708,616.14 and 7,782,864.48 is: 11,664,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155,711.60 : 28,708,616.14 = 7,782,864.48 : x
  2. Step 2: Convert to fraction form
    19,155,711.60/28,708,616.14 = 7,782,864.48/x
  3. Step 3: Cross multiply
    19,155,711.60x = 28,708,616.14 × 7,782,864.48
  4. Step 4: Simplify right side
    19,155,711.60x = 223,435,268,806,503.56
  5. Step 5: Solve for x
    x = 223,435,268,806,503.56/19,155,711.60
  6. Step 6: Final answer
    x = 11,664,159.15

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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.