Home / 15,386,271.52-21,231,732-8,509,041.76

Finding the Fourth Proportional to 15,386,271.52, 21,231,732 and 8,509,041.76

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Solution

The fourth proportional to 15,386,271.52, 21,231,732 and 8,509,041.76 is: 11,741,746.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386,271.52 : 21,231,732 = 8,509,041.76 : x
  2. Step 2: Convert to fraction form
    15,386,271.52/21,231,732 = 8,509,041.76/x
  3. Step 3: Cross multiply
    15,386,271.52x = 21,231,732 × 8,509,041.76
  4. Step 4: Simplify right side
    15,386,271.52x = 180,661,694,225,128.31
  5. Step 5: Solve for x
    x = 180,661,694,225,128.31/15,386,271.52
  6. Step 6: Final answer
    x = 11,741,746.14

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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.