Home / 72,756,443.40-109,134,665.10-63,190,505.40

Finding the Fourth Proportional to 72,756,443.40, 109,134,665.10 and 63,190,505.40

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Solution

The fourth proportional to 72,756,443.40, 109,134,665.10 and 63,190,505.40 is: 94,785,758.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,756,443.40 : 109,134,665.10 = 63,190,505.40 : x
  2. Step 2: Convert to fraction form
    72,756,443.40/109,134,665.10 = 63,190,505.40/x
  3. Step 3: Cross multiply
    72,756,443.40x = 109,134,665.10 × 63,190,505.40
  4. Step 4: Simplify right side
    72,756,443.40x = 6,896,274,644,328,741
  5. Step 5: Solve for x
    x = 6,896,274,644,328,741/72,756,443.40
  6. Step 6: Final answer
    x = 94,785,758.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.