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Finding the Fourth Proportional to 9,873,006.60, 14,809,509.90 and 8,991,208.20

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Solution

The fourth proportional to 9,873,006.60, 14,809,509.90 and 8,991,208.20 is: 13,486,812.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,873,006.60 : 14,809,509.90 = 8,991,208.20 : x
  2. Step 2: Convert to fraction form
    9,873,006.60/14,809,509.90 = 8,991,208.20/x
  3. Step 3: Cross multiply
    9,873,006.60x = 14,809,509.90 × 8,991,208.20
  4. Step 4: Simplify right side
    9,873,006.60x = 133,155,386,850,861.17
  5. Step 5: Solve for x
    x = 133,155,386,850,861.17/9,873,006.60
  6. Step 6: Final answer
    x = 13,486,812.30

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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.