Home / 824,402,965.20-1,236,604,447.80-279,144,499.20

Finding the Fourth Proportional to 824,402,965.20, 1,236,604,447.80 and 279,144,499.20

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Solution

The fourth proportional to 824,402,965.20, 1,236,604,447.80 and 279,144,499.20 is: 418,716,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,402,965.20 : 1,236,604,447.80 = 279,144,499.20 : x
  2. Step 2: Convert to fraction form
    824,402,965.20/1,236,604,447.80 = 279,144,499.20/x
  3. Step 3: Cross multiply
    824,402,965.20x = 1,236,604,447.80 × 279,144,499.20
  4. Step 4: Simplify right side
    824,402,965.20x = 345,191,329,289,623,488
  5. Step 5: Solve for x
    x = 345,191,329,289,623,488/824,402,965.20
  6. Step 6: Final answer
    x = 418,716,748.80

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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.