Home / 15,692,386.24-21,665,154.24-12,442,329.28

Finding the Fourth Proportional to 15,692,386.24, 21,665,154.24 and 12,442,329.28

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Solution

The fourth proportional to 15,692,386.24, 21,665,154.24 and 12,442,329.28 is: 17,178,074.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692,386.24 : 21,665,154.24 = 12,442,329.28 : x
  2. Step 2: Convert to fraction form
    15,692,386.24/21,665,154.24 = 12,442,329.28/x
  3. Step 3: Cross multiply
    15,692,386.24x = 21,665,154.24 × 12,442,329.28
  4. Step 4: Simplify right side
    15,692,386.24x = 269,564,982,956,068.12
  5. Step 5: Solve for x
    x = 269,564,982,956,068.12/15,692,386.24
  6. Step 6: Final answer
    x = 17,178,074.69

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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.