Home / 8,221,624.40-12,332,436.60-7,885,701.20

Finding the Fourth Proportional to 8,221,624.40, 12,332,436.60 and 7,885,701.20

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Solution

The fourth proportional to 8,221,624.40, 12,332,436.60 and 7,885,701.20 is: 11,828,551.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221,624.40 : 12,332,436.60 = 7,885,701.20 : x
  2. Step 2: Convert to fraction form
    8,221,624.40/12,332,436.60 = 7,885,701.20/x
  3. Step 3: Cross multiply
    8,221,624.40x = 12,332,436.60 × 7,885,701.20
  4. Step 4: Simplify right side
    8,221,624.40x = 97,249,910,095,543.92
  5. Step 5: Solve for x
    x = 97,249,910,095,543.92/8,221,624.40
  6. Step 6: Final answer
    x = 11,828,551.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.