Home / 7,139,876.63-9,853,200.99-3,876,828.89

Finding the Fourth Proportional to 7,139,876.63, 9,853,200.99 and 3,876,828.89

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Solution

The fourth proportional to 7,139,876.63, 9,853,200.99 and 3,876,828.89 is: 5,350,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,876.63 : 9,853,200.99 = 3,876,828.89 : x
  2. Step 2: Convert to fraction form
    7,139,876.63/9,853,200.99 = 3,876,828.89/x
  3. Step 3: Cross multiply
    7,139,876.63x = 9,853,200.99 × 3,876,828.89
  4. Step 4: Simplify right side
    7,139,876.63x = 38,199,174,281,641.60
  5. Step 5: Solve for x
    x = 38,199,174,281,641.60/7,139,876.63
  6. Step 6: Final answer
    x = 5,350,116.85

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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.