Home / 82,518,173.58-123,781,371.75-31,404,153.90

Finding the Fourth Proportional to 82,518,173.58, 123,781,371.75 and 31,404,153.90

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Solution

The fourth proportional to 82,518,173.58, 123,781,371.75 and 31,404,153.90 is: 47,107,795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,518,173.58 : 123,781,371.75 = 31,404,153.90 : x
  2. Step 2: Convert to fraction form
    82,518,173.58/123,781,371.75 = 31,404,153.90/x
  3. Step 3: Cross multiply
    82,518,173.58x = 123,781,371.75 × 31,404,153.90
  4. Step 4: Simplify right side
    82,518,173.58x = 3,887,249,248,390,112
  5. Step 5: Solve for x
    x = 3,887,249,248,390,112/82,518,173.58
  6. Step 6: Final answer
    x = 47,107,795.53

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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.