Home / 215,873,276.40-323,697,940.20-79,488,457.20

Finding the Fourth Proportional to 215,873,276.40, 323,697,940.20 and 79,488,457.20

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Solution

The fourth proportional to 215,873,276.40, 323,697,940.20 and 79,488,457.20 is: 119,191,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,873,276.40 : 323,697,940.20 = 79,488,457.20 : x
  2. Step 2: Convert to fraction form
    215,873,276.40/323,697,940.20 = 79,488,457.20/x
  3. Step 3: Cross multiply
    215,873,276.40x = 323,697,940.20 × 79,488,457.20
  4. Step 4: Simplify right side
    215,873,276.40x = 25,730,249,865,315,860
  5. Step 5: Solve for x
    x = 25,730,249,865,315,860/215,873,276.40
  6. Step 6: Final answer
    x = 119,191,454.79

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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.