Home / 778,704,169.68-1,074,611,667.30-421,471,885.32

Finding the Fourth Proportional to 778,704,169.68, 1,074,611,667.30 and 421,471,885.32

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Solution

The fourth proportional to 778,704,169.68, 1,074,611,667.30 and 421,471,885.32 is: 581,631,154.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,704,169.68 : 1,074,611,667.30 = 421,471,885.32 : x
  2. Step 2: Convert to fraction form
    778,704,169.68/1,074,611,667.30 = 421,471,885.32/x
  3. Step 3: Cross multiply
    778,704,169.68x = 1,074,611,667.30 × 421,471,885.32
  4. Step 4: Simplify right side
    778,704,169.68x = 452,918,605,403,799,552
  5. Step 5: Solve for x
    x = 452,918,605,403,799,552/778,704,169.68
  6. Step 6: Final answer
    x = 581,631,154.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.