Home / 78,997,475.28-109,038,424.22-45,964,104.65

Finding the Fourth Proportional to 78,997,475.28, 109,038,424.22 and 45,964,104.65

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Solution

The fourth proportional to 78,997,475.28, 109,038,424.22 and 45,964,104.65 is: 63,443,211.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,997,475.28 : 109,038,424.22 = 45,964,104.65 : x
  2. Step 2: Convert to fraction form
    78,997,475.28/109,038,424.22 = 45,964,104.65/x
  3. Step 3: Cross multiply
    78,997,475.28x = 109,038,424.22 × 45,964,104.65
  4. Step 4: Simplify right side
    78,997,475.28x = 5,011,853,541,525,421
  5. Step 5: Solve for x
    x = 5,011,853,541,525,421/78,997,475.28
  6. Step 6: Final answer
    x = 63,443,211.62

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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.