Home / 77,251,995.70-115,966,467.15-45,357,262.90

Finding the Fourth Proportional to 77,251,995.70, 115,966,467.15 and 45,357,262.90

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Solution

The fourth proportional to 77,251,995.70, 115,966,467.15 and 45,357,262.90 is: 68,087,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,251,995.70 : 115,966,467.15 = 45,357,262.90 : x
  2. Step 2: Convert to fraction form
    77,251,995.70/115,966,467.15 = 45,357,262.90/x
  3. Step 3: Cross multiply
    77,251,995.70x = 115,966,467.15 × 45,357,262.90
  4. Step 4: Simplify right side
    77,251,995.70x = 5,259,921,538,106,764
  5. Step 5: Solve for x
    x = 5,259,921,538,106,764/77,251,995.70
  6. Step 6: Final answer
    x = 68,087,840.20

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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.