Home / 72,313,205.70-108,470,691.45-21,196,258.14

Finding the Fourth Proportional to 72,313,205.70, 108,470,691.45 and 21,196,258.14

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Solution

The fourth proportional to 72,313,205.70, 108,470,691.45 and 21,196,258.14 is: 31,794,646.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,313,205.70 : 108,470,691.45 = 21,196,258.14 : x
  2. Step 2: Convert to fraction form
    72,313,205.70/108,470,691.45 = 21,196,258.14/x
  3. Step 3: Cross multiply
    72,313,205.70x = 108,470,691.45 × 21,196,258.14
  4. Step 4: Simplify right side
    72,313,205.70x = 2,299,172,776,598,491
  5. Step 5: Solve for x
    x = 2,299,172,776,598,491/72,313,205.70
  6. Step 6: Final answer
    x = 31,794,646.00

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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.