Home / 210,826,140.30-316,239,210.45-124,520,121.90

Finding the Fourth Proportional to 210,826,140.30, 316,239,210.45 and 124,520,121.90

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Solution

The fourth proportional to 210,826,140.30, 316,239,210.45 and 124,520,121.90 is: 186,780,182.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,826,140.30 : 316,239,210.45 = 124,520,121.90 : x
  2. Step 2: Convert to fraction form
    210,826,140.30/316,239,210.45 = 124,520,121.90/x
  3. Step 3: Cross multiply
    210,826,140.30x = 316,239,210.45 × 124,520,121.90
  4. Step 4: Simplify right side
    210,826,140.30x = 39,378,145,034,793,752
  5. Step 5: Solve for x
    x = 39,378,145,034,793,752/210,826,140.30
  6. Step 6: Final answer
    x = 186,780,182.85

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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.