Home / 12,480,421.61-17,224,692.76-7,182,007.65

Finding the Fourth Proportional to 12,480,421.61, 17,224,692.76 and 7,182,007.65

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Solution

The fourth proportional to 12,480,421.61, 17,224,692.76 and 7,182,007.65 is: 9,912,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,421.61 : 17,224,692.76 = 7,182,007.65 : x
  2. Step 2: Convert to fraction form
    12,480,421.61/17,224,692.76 = 7,182,007.65/x
  3. Step 3: Cross multiply
    12,480,421.61x = 17,224,692.76 × 7,182,007.65
  4. Step 4: Simplify right side
    12,480,421.61x = 123,707,875,171,219.62
  5. Step 5: Solve for x
    x = 123,707,875,171,219.62/12,480,421.61
  6. Step 6: Final answer
    x = 9,912,155.14

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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.