Home / 133,037,821.20-199,556,731.80-72,571,645.20

Finding the Fourth Proportional to 133,037,821.20, 199,556,731.80 and 72,571,645.20

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Solution

The fourth proportional to 133,037,821.20, 199,556,731.80 and 72,571,645.20 is: 108,857,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,037,821.20 : 199,556,731.80 = 72,571,645.20 : x
  2. Step 2: Convert to fraction form
    133,037,821.20/199,556,731.80 = 72,571,645.20/x
  3. Step 3: Cross multiply
    133,037,821.20x = 199,556,731.80 × 72,571,645.20
  4. Step 4: Simplify right side
    133,037,821.20x = 14,482,160,337,461,158
  5. Step 5: Solve for x
    x = 14,482,160,337,461,158/133,037,821.20
  6. Step 6: Final answer
    x = 108,857,467.80

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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.