Home / 12,812,642.19-17,681,447.88-7,011,424.35

Finding the Fourth Proportional to 12,812,642.19, 17,681,447.88 and 7,011,424.35

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Solution

The fourth proportional to 12,812,642.19, 17,681,447.88 and 7,011,424.35 is: 9,675,766.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812,642.19 : 17,681,447.88 = 7,011,424.35 : x
  2. Step 2: Convert to fraction form
    12,812,642.19/17,681,447.88 = 7,011,424.35/x
  3. Step 3: Cross multiply
    12,812,642.19x = 17,681,447.88 × 7,011,424.35
  4. Step 4: Simplify right side
    12,812,642.19x = 123,972,134,209,087.86
  5. Step 5: Solve for x
    x = 123,972,134,209,087.86/12,812,642.19
  6. Step 6: Final answer
    x = 9,675,766.51

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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.