Home / 9,989,123.50-13,785,002.73-5,405,444.88

Finding the Fourth Proportional to 9,989,123.50, 13,785,002.73 and 5,405,444.88

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Solution

The fourth proportional to 9,989,123.50, 13,785,002.73 and 5,405,444.88 is: 7,459,520.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,123.50 : 13,785,002.73 = 5,405,444.88 : x
  2. Step 2: Convert to fraction form
    9,989,123.50/13,785,002.73 = 5,405,444.88/x
  3. Step 3: Cross multiply
    9,989,123.50x = 13,785,002.73 × 5,405,444.88
  4. Step 4: Simplify right side
    9,989,123.50x = 74,514,072,427,664.52
  5. Step 5: Solve for x
    x = 74,514,072,427,664.52/9,989,123.50
  6. Step 6: Final answer
    x = 7,459,520.59

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1.5x scale

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.