Home / 72,346,053.60-108,519,080.40-66,803,320.80

Finding the Fourth Proportional to 72,346,053.60, 108,519,080.40 and 66,803,320.80

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Solution

The fourth proportional to 72,346,053.60, 108,519,080.40 and 66,803,320.80 is: 100,204,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,346,053.60 : 108,519,080.40 = 66,803,320.80 : x
  2. Step 2: Convert to fraction form
    72,346,053.60/108,519,080.40 = 66,803,320.80/x
  3. Step 3: Cross multiply
    72,346,053.60x = 108,519,080.40 × 66,803,320.80
  4. Step 4: Simplify right side
    72,346,053.60x = 7,249,434,940,882,192
  5. Step 5: Solve for x
    x = 7,249,434,940,882,192/72,346,053.60
  6. Step 6: Final answer
    x = 100,204,981.20

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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.