Home / 124,618,629.92-186,969,473.58-78,507,264.20

Finding the Fourth Proportional to 124,618,629.92, 186,969,473.58 and 78,507,264.20

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Solution

The fourth proportional to 124,618,629.92, 186,969,473.58 and 78,507,264.20 is: 117,787,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,618,629.92 : 186,969,473.58 = 78,507,264.20 : x
  2. Step 2: Convert to fraction form
    124,618,629.92/186,969,473.58 = 78,507,264.20/x
  3. Step 3: Cross multiply
    124,618,629.92x = 186,969,473.58 × 78,507,264.20
  4. Step 4: Simplify right side
    124,618,629.92x = 14,678,461,859,679,982
  5. Step 5: Solve for x
    x = 14,678,461,859,679,982/124,618,629.92
  6. Step 6: Final answer
    x = 117,787,058.56

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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.