Home / 21,247,277.60-31,870,916.40-13,594,527.20

Finding the Fourth Proportional to 21,247,277.60, 31,870,916.40 and 13,594,527.20

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Solution

The fourth proportional to 21,247,277.60, 31,870,916.40 and 13,594,527.20 is: 20,391,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,247,277.60 : 31,870,916.40 = 13,594,527.20 : x
  2. Step 2: Convert to fraction form
    21,247,277.60/31,870,916.40 = 13,594,527.20/x
  3. Step 3: Cross multiply
    21,247,277.60x = 31,870,916.40 × 13,594,527.20
  4. Step 4: Simplify right side
    21,247,277.60x = 433,270,039,888,726.06
  5. Step 5: Solve for x
    x = 433,270,039,888,726.06/21,247,277.60
  6. Step 6: Final answer
    x = 20,391,790.80

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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.