Home / 15,541,862.16-21,447,909-8,572,806.72

Finding the Fourth Proportional to 15,541,862.16, 21,447,909 and 8,572,806.72

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Solution

The fourth proportional to 15,541,862.16, 21,447,909 and 8,572,806.72 is: 11,830,550.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541,862.16 : 21,447,909 = 8,572,806.72 : x
  2. Step 2: Convert to fraction form
    15,541,862.16/21,447,909 = 8,572,806.72/x
  3. Step 3: Cross multiply
    15,541,862.16x = 21,447,909 × 8,572,806.72
  4. Step 4: Simplify right side
    15,541,862.16x = 183,868,778,405,148.50
  5. Step 5: Solve for x
    x = 183,868,778,405,148.50/15,541,862.16
  6. Step 6: Final answer
    x = 11,830,550.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.