Home / 19,313,145.60-28,969,718.40-9,724,819.20

Finding the Fourth Proportional to 19,313,145.60, 28,969,718.40 and 9,724,819.20

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Solution

The fourth proportional to 19,313,145.60, 28,969,718.40 and 9,724,819.20 is: 14,587,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313,145.60 : 28,969,718.40 = 9,724,819.20 : x
  2. Step 2: Convert to fraction form
    19,313,145.60/28,969,718.40 = 9,724,819.20/x
  3. Step 3: Cross multiply
    19,313,145.60x = 28,969,718.40 × 9,724,819.20
  4. Step 4: Simplify right side
    19,313,145.60x = 281,725,273,714,913.25
  5. Step 5: Solve for x
    x = 281,725,273,714,913.25/19,313,145.60
  6. Step 6: Final answer
    x = 14,587,228.80

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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.