Home / 7,129,123.70-10,692,373.35-4,428,616.10

Finding the Fourth Proportional to 7,129,123.70, 10,692,373.35 and 4,428,616.10

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Solution

The fourth proportional to 7,129,123.70, 10,692,373.35 and 4,428,616.10 is: 6,642,109.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,123.70 : 10,692,373.35 = 4,428,616.10 : x
  2. Step 2: Convert to fraction form
    7,129,123.70/10,692,373.35 = 4,428,616.10/x
  3. Step 3: Cross multiply
    7,129,123.70x = 10,692,373.35 × 4,428,616.10
  4. Step 4: Simplify right side
    7,129,123.70x = 47,352,416,765,020.93
  5. Step 5: Solve for x
    x = 47,352,416,765,020.93/7,129,123.70
  6. Step 6: Final answer
    x = 6,642,109.01

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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.