Home / 9,000,778.90-12,421,074.50-4,870,810.17

Finding the Fourth Proportional to 9,000,778.90, 12,421,074.50 and 4,870,810.17

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Solution

The fourth proportional to 9,000,778.90, 12,421,074.50 and 4,870,810.17 is: 6,721,717.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000,778.90 : 12,421,074.50 = 4,870,810.17 : x
  2. Step 2: Convert to fraction form
    9,000,778.90/12,421,074.50 = 4,870,810.17/x
  3. Step 3: Cross multiply
    9,000,778.90x = 12,421,074.50 × 4,870,810.17
  4. Step 4: Simplify right side
    9,000,778.90x = 60,500,695,996,927.66
  5. Step 5: Solve for x
    x = 60,500,695,996,927.66/9,000,778.90
  6. Step 6: Final answer
    x = 6,721,717.83

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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.