Home / 31,281,279.30-46,921,918.95-28,305,209.70

Finding the Fourth Proportional to 31,281,279.30, 46,921,918.95 and 28,305,209.70

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Solution

The fourth proportional to 31,281,279.30, 46,921,918.95 and 28,305,209.70 is: 42,457,814.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,281,279.30 : 46,921,918.95 = 28,305,209.70 : x
  2. Step 2: Convert to fraction form
    31,281,279.30/46,921,918.95 = 28,305,209.70/x
  3. Step 3: Cross multiply
    31,281,279.30x = 46,921,918.95 × 28,305,209.70
  4. Step 4: Simplify right side
    31,281,279.30x = 1,328,134,755,406,153.75
  5. Step 5: Solve for x
    x = 1,328,134,755,406,153.75/31,281,279.30
  6. Step 6: Final answer
    x = 42,457,814.55

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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.