Home / 12,438,471.84-17,159,226.48-7,278,668.16

Finding the Fourth Proportional to 12,438,471.84, 17,159,226.48 and 7,278,668.16

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Solution

The fourth proportional to 12,438,471.84, 17,159,226.48 and 7,278,668.16 is: 10,041,130.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,471.84 : 17,159,226.48 = 7,278,668.16 : x
  2. Step 2: Convert to fraction form
    12,438,471.84/17,159,226.48 = 7,278,668.16/x
  3. Step 3: Cross multiply
    12,438,471.84x = 17,159,226.48 × 7,278,668.16
  4. Step 4: Simplify right side
    12,438,471.84x = 124,896,315,430,204.88
  5. Step 5: Solve for x
    x = 124,896,315,430,204.88/12,438,471.84
  6. Step 6: Final answer
    x = 10,041,130.22

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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.