Home / 10,281,879.60-15,422,819.40-9,889,969.20

Finding the Fourth Proportional to 10,281,879.60, 15,422,819.40 and 9,889,969.20

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Solution

The fourth proportional to 10,281,879.60, 15,422,819.40 and 9,889,969.20 is: 14,834,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281,879.60 : 15,422,819.40 = 9,889,969.20 : x
  2. Step 2: Convert to fraction form
    10,281,879.60/15,422,819.40 = 9,889,969.20/x
  3. Step 3: Cross multiply
    10,281,879.60x = 15,422,819.40 × 9,889,969.20
  4. Step 4: Simplify right side
    10,281,879.60x = 152,531,208,843,162.47
  5. Step 5: Solve for x
    x = 152,531,208,843,162.47/10,281,879.60
  6. Step 6: Final answer
    x = 14,834,953.80

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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.