Home / 279,426,221.80-419,139,332.70-97,654,445.80

Finding the Fourth Proportional to 279,426,221.80, 419,139,332.70 and 97,654,445.80

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Solution

The fourth proportional to 279,426,221.80, 419,139,332.70 and 97,654,445.80 is: 146,481,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,426,221.80 : 419,139,332.70 = 97,654,445.80 : x
  2. Step 2: Convert to fraction form
    279,426,221.80/419,139,332.70 = 97,654,445.80/x
  3. Step 3: Cross multiply
    279,426,221.80x = 419,139,332.70 × 97,654,445.80
  4. Step 4: Simplify right side
    279,426,221.80x = 40,930,819,247,800,312
  5. Step 5: Solve for x
    x = 40,930,819,247,800,312/279,426,221.80
  6. Step 6: Final answer
    x = 146,481,668.70

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1.5x scale

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.