Home / 39,143,775.80-58,715,663.70-28,338,246.20

Finding the Fourth Proportional to 39,143,775.80, 58,715,663.70 and 28,338,246.20

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Solution

The fourth proportional to 39,143,775.80, 58,715,663.70 and 28,338,246.20 is: 42,507,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143,775.80 : 58,715,663.70 = 28,338,246.20 : x
  2. Step 2: Convert to fraction form
    39,143,775.80/58,715,663.70 = 28,338,246.20/x
  3. Step 3: Cross multiply
    39,143,775.80x = 58,715,663.70 × 28,338,246.20
  4. Step 4: Simplify right side
    39,143,775.80x = 1,663,898,933,727,003
  5. Step 5: Solve for x
    x = 1,663,898,933,727,003/39,143,775.80
  6. Step 6: Final answer
    x = 42,507,369.30

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Double scale
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Similar ratio
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1.5x scale

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.