Home / 10,866,489.90-16,281,072.45-7,078,022.70

Finding the Fourth Proportional to 10,866,489.90, 16,281,072.45 and 7,078,022.70

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Solution

The fourth proportional to 10,866,489.90, 16,281,072.45 and 7,078,022.70 is: 10,604,878.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866,489.90 : 16,281,072.45 = 7,078,022.70 : x
  2. Step 2: Convert to fraction form
    10,866,489.90/16,281,072.45 = 7,078,022.70/x
  3. Step 3: Cross multiply
    10,866,489.90x = 16,281,072.45 × 7,078,022.70
  4. Step 4: Simplify right side
    10,866,489.90x = 115,237,800,381,444.61
  5. Step 5: Solve for x
    x = 115,237,800,381,444.61/10,866,489.90
  6. Step 6: Final answer
    x = 10,604,878.06

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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.