Home / 12,480,420.12-17,224,690.69-7,182,006.16

Finding the Fourth Proportional to 12,480,420.12, 17,224,690.69 and 7,182,006.16

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Solution

The fourth proportional to 12,480,420.12, 17,224,690.69 and 7,182,006.16 is: 9,912,153.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480,420.12 : 17,224,690.69 = 7,182,006.16 : x
  2. Step 2: Convert to fraction form
    12,480,420.12/17,224,690.69 = 7,182,006.16/x
  3. Step 3: Cross multiply
    12,480,420.12x = 17,224,690.69 × 7,182,006.16
  4. Step 4: Simplify right side
    12,480,420.12x = 123,707,834,553,551.22
  5. Step 5: Solve for x
    x = 123,707,834,553,551.22/12,480,420.12
  6. Step 6: Final answer
    x = 9,912,153.07

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1.5x scale

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.