Home / 156,165,309.07-215,382,466.50-137,286,525.40

Finding the Fourth Proportional to 156,165,309.07, 215,382,466.50 and 137,286,525.40

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Solution

The fourth proportional to 156,165,309.07, 215,382,466.50 and 137,286,525.40 is: 189,344,936.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,165,309.07 : 215,382,466.50 = 137,286,525.40 : x
  2. Step 2: Convert to fraction form
    156,165,309.07/215,382,466.50 = 137,286,525.40/x
  3. Step 3: Cross multiply
    156,165,309.07x = 215,382,466.50 × 137,286,525.40
  4. Step 4: Simplify right side
    156,165,309.07x = 29,569,110,457,866,900
  5. Step 5: Solve for x
    x = 29,569,110,457,866,900/156,165,309.07
  6. Step 6: Final answer
    x = 189,344,936.04

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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.