Home / 78,345,243.61-108,002,488.97-54,750,526.20

Finding the Fourth Proportional to 78,345,243.61, 108,002,488.97 and 54,750,526.20

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Solution

The fourth proportional to 78,345,243.61, 108,002,488.97 and 54,750,526.20 is: 75,476,095.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,345,243.61 : 108,002,488.97 = 54,750,526.20 : x
  2. Step 2: Convert to fraction form
    78,345,243.61/108,002,488.97 = 54,750,526.20/x
  3. Step 3: Cross multiply
    78,345,243.61x = 108,002,488.97 × 54,750,526.20
  4. Step 4: Simplify right side
    78,345,243.61x = 5,913,193,102,154,072
  5. Step 5: Solve for x
    x = 5,913,193,102,154,072/78,345,243.61
  6. Step 6: Final answer
    x = 75,476,095.67

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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.