Home / 13,029,376.92-17,980,561.34-7,228,158.84

Finding the Fourth Proportional to 13,029,376.92, 17,980,561.34 and 7,228,158.84

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Solution

The fourth proportional to 13,029,376.92, 17,980,561.34 and 7,228,158.84 is: 9,974,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,029,376.92 : 17,980,561.34 = 7,228,158.84 : x
  2. Step 2: Convert to fraction form
    13,029,376.92/17,980,561.34 = 7,228,158.84/x
  3. Step 3: Cross multiply
    13,029,376.92x = 17,980,561.34 × 7,228,158.84
  4. Step 4: Simplify right side
    13,029,376.92x = 129,966,353,361,742.45
  5. Step 5: Solve for x
    x = 129,966,353,361,742.45/13,029,376.92
  6. Step 6: Final answer
    x = 9,974,870.95

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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.