Home / 77,310,039.40-115,979,055.90-38,874,826.60

Finding the Fourth Proportional to 77,310,039.40, 115,979,055.90 and 38,874,826.60

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Solution

The fourth proportional to 77,310,039.40, 115,979,055.90 and 38,874,826.60 is: 58,319,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,310,039.40 : 115,979,055.90 = 38,874,826.60 : x
  2. Step 2: Convert to fraction form
    77,310,039.40/115,979,055.90 = 38,874,826.60/x
  3. Step 3: Cross multiply
    77,310,039.40x = 115,979,055.90 × 38,874,826.60
  4. Step 4: Simplify right side
    77,310,039.40x = 4,508,665,687,344,207
  5. Step 5: Solve for x
    x = 4,508,665,687,344,207/77,310,039.40
  6. Step 6: Final answer
    x = 58,319,278.10

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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.