Home / 124,618,628.92-186,969,472.08-78,507,263.20

Finding the Fourth Proportional to 124,618,628.92, 186,969,472.08 and 78,507,263.20

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Solution

The fourth proportional to 124,618,628.92, 186,969,472.08 and 78,507,263.20 is: 117,787,057.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,618,628.92 : 186,969,472.08 = 78,507,263.20 : x
  2. Step 2: Convert to fraction form
    124,618,628.92/186,969,472.08 = 78,507,263.20/x
  3. Step 3: Cross multiply
    124,618,628.92x = 186,969,472.08 × 78,507,263.20
  4. Step 4: Simplify right side
    124,618,628.92x = 14,678,461,554,949,614
  5. Step 5: Solve for x
    x = 14,678,461,554,949,614/124,618,628.92
  6. Step 6: Final answer
    x = 117,787,057.06

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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.