Home / 40,302,711.12-55,618,293.96-21,967,957.20

Finding the Fourth Proportional to 40,302,711.12, 55,618,293.96 and 21,967,957.20

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Solution

The fourth proportional to 40,302,711.12, 55,618,293.96 and 21,967,957.20 is: 30,316,082.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,302,711.12 : 55,618,293.96 = 21,967,957.20 : x
  2. Step 2: Convert to fraction form
    40,302,711.12/55,618,293.96 = 21,967,957.20/x
  3. Step 3: Cross multiply
    40,302,711.12x = 55,618,293.96 × 21,967,957.20
  4. Step 4: Simplify right side
    40,302,711.12x = 1,221,820,301,250,298.50
  5. Step 5: Solve for x
    x = 1,221,820,301,250,298.50/40,302,711.12
  6. Step 6: Final answer
    x = 30,316,082.15

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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.