Home / 8,221,638.90-12,332,458.35-7,885,715.70

Finding the Fourth Proportional to 8,221,638.90, 12,332,458.35 and 7,885,715.70

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Solution

The fourth proportional to 8,221,638.90, 12,332,458.35 and 7,885,715.70 is: 11,828,573.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221,638.90 : 12,332,458.35 = 7,885,715.70 : x
  2. Step 2: Convert to fraction form
    8,221,638.90/12,332,458.35 = 7,885,715.70/x
  3. Step 3: Cross multiply
    8,221,638.90x = 12,332,458.35 × 7,885,715.70
  4. Step 4: Simplify right side
    8,221,638.90x = 97,250,260,430,191.09
  5. Step 5: Solve for x
    x = 97,250,260,430,191.09/8,221,638.90
  6. Step 6: Final answer
    x = 11,828,573.55

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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.