Home / 8,045,987.65-12,068,981.48-7,990,000.45

Finding the Fourth Proportional to 8,045,987.65, 12,068,981.48 and 7,990,000.45

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Solution

The fourth proportional to 8,045,987.65, 12,068,981.48 and 7,990,000.45 is: 11,985,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045,987.65 : 12,068,981.48 = 7,990,000.45 : x
  2. Step 2: Convert to fraction form
    8,045,987.65/12,068,981.48 = 7,990,000.45/x
  3. Step 3: Cross multiply
    8,045,987.65x = 12,068,981.48 × 7,990,000.45
  4. Step 4: Simplify right side
    8,045,987.65x = 96,431,167,456,241.67
  5. Step 5: Solve for x
    x = 96,431,167,456,241.67/8,045,987.65
  6. Step 6: Final answer
    x = 11,985,000.68

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Similar ratio
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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.