Home / 156,326,340.24-215,756,223.12-86,734,141.20

Finding the Fourth Proportional to 156,326,340.24, 215,756,223.12 and 86,734,141.20

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Solution

The fourth proportional to 156,326,340.24, 215,756,223.12 and 86,734,141.20 is: 119,707,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,326,340.24 : 215,756,223.12 = 86,734,141.20 : x
  2. Step 2: Convert to fraction form
    156,326,340.24/215,756,223.12 = 86,734,141.20/x
  3. Step 3: Cross multiply
    156,326,340.24x = 215,756,223.12 × 86,734,141.20
  4. Step 4: Simplify right side
    156,326,340.24x = 18,713,430,720,868,784
  5. Step 5: Solve for x
    x = 18,713,430,720,868,784/156,326,340.24
  6. Step 6: Final answer
    x = 119,707,470.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.