Home / 10,138,969.17-15,152,789.27-7,412,256.75

Finding the Fourth Proportional to 10,138,969.17, 15,152,789.27 and 7,412,256.75

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Solution

The fourth proportional to 10,138,969.17, 15,152,789.27 and 7,412,256.75 is: 11,077,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138,969.17 : 15,152,789.27 = 7,412,256.75 : x
  2. Step 2: Convert to fraction form
    10,138,969.17/15,152,789.27 = 7,412,256.75/x
  3. Step 3: Cross multiply
    10,138,969.17x = 15,152,789.27 × 7,412,256.75
  4. Step 4: Simplify right side
    10,138,969.17x = 112,316,364,510,823.80
  5. Step 5: Solve for x
    x = 112,316,364,510,823.80/10,138,969.17
  6. Step 6: Final answer
    x = 11,077,690.70

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.