Home / 1,279,704,275.04-1,919,628,156.80-359,508,869.92

Finding the Fourth Proportional to 1,279,704,275.04, 1,919,628,156.80 and 359,508,869.92

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Solution

The fourth proportional to 1,279,704,275.04, 1,919,628,156.80 and 359,508,869.92 is: 539,283,460.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,704,275.04 : 1,919,628,156.80 = 359,508,869.92 : x
  2. Step 2: Convert to fraction form
    1,279,704,275.04/1,919,628,156.80 = 359,508,869.92/x
  3. Step 3: Cross multiply
    1,279,704,275.04x = 1,919,628,156.80 × 359,508,869.92
  4. Step 4: Simplify right side
    1,279,704,275.04x = 690,123,349,317,780,608
  5. Step 5: Solve for x
    x = 690,123,349,317,780,608/1,279,704,275.04
  6. Step 6: Final answer
    x = 539,283,460.08

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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.