Home / 15,124,864.32-20,872,300.32-8,249,325.12

Finding the Fourth Proportional to 15,124,864.32, 20,872,300.32 and 8,249,325.12

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Solution

The fourth proportional to 15,124,864.32, 20,872,300.32 and 8,249,325.12 is: 11,384,061.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,124,864.32 : 20,872,300.32 = 8,249,325.12 : x
  2. Step 2: Convert to fraction form
    15,124,864.32/20,872,300.32 = 8,249,325.12/x
  3. Step 3: Cross multiply
    15,124,864.32x = 20,872,300.32 × 8,249,325.12
  4. Step 4: Simplify right side
    15,124,864.32x = 172,182,391,341,960.03
  5. Step 5: Solve for x
    x = 172,182,391,341,960.03/15,124,864.32
  6. Step 6: Final answer
    x = 11,384,061.88

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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.