Home / 9,359,640.72-12,915,502.56-5,386,040.64

Finding the Fourth Proportional to 9,359,640.72, 12,915,502.56 and 5,386,040.64

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Solution

The fourth proportional to 9,359,640.72, 12,915,502.56 and 5,386,040.64 is: 7,432,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,359,640.72 : 12,915,502.56 = 5,386,040.64 : x
  2. Step 2: Convert to fraction form
    9,359,640.72/12,915,502.56 = 5,386,040.64/x
  3. Step 3: Cross multiply
    9,359,640.72x = 12,915,502.56 × 5,386,040.64
  4. Step 4: Simplify right side
    9,359,640.72x = 69,563,421,674,184.04
  5. Step 5: Solve for x
    x = 69,563,421,674,184.04/9,359,640.72
  6. Step 6: Final answer
    x = 7,432,274.78

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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.