Home / 8,312,934.80-11,479,772.76-7,860,053.72

Finding the Fourth Proportional to 8,312,934.80, 11,479,772.76 and 7,860,053.72

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Solution

The fourth proportional to 8,312,934.80, 11,479,772.76 and 7,860,053.72 is: 10,854,365.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312,934.80 : 11,479,772.76 = 7,860,053.72 : x
  2. Step 2: Convert to fraction form
    8,312,934.80/11,479,772.76 = 7,860,053.72/x
  3. Step 3: Cross multiply
    8,312,934.80x = 11,479,772.76 × 7,860,053.72
  4. Step 4: Simplify right side
    8,312,934.80x = 90,231,630,586,992.66
  5. Step 5: Solve for x
    x = 90,231,630,586,992.66/8,312,934.80
  6. Step 6: Final answer
    x = 10,854,365.25

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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.