Home / 7,140,143.94-9,853,129.56-3,876,888.12

Finding the Fourth Proportional to 7,140,143.94, 9,853,129.56 and 3,876,888.12

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Solution

The fourth proportional to 7,140,143.94, 9,853,129.56 and 3,876,888.12 is: 5,349,959.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140,143.94 : 9,853,129.56 = 3,876,888.12 : x
  2. Step 2: Convert to fraction form
    7,140,143.94/9,853,129.56 = 3,876,888.12/x
  3. Step 3: Cross multiply
    7,140,143.94x = 9,853,129.56 × 3,876,888.12
  4. Step 4: Simplify right side
    7,140,143.94x = 38,199,480,935,984.83
  5. Step 5: Solve for x
    x = 38,199,480,935,984.83/7,140,143.94
  6. Step 6: Final answer
    x = 5,349,959.50

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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.