Home / 1,274,449,014.72-1,758,506,169.14-709,919,847.61

Finding the Fourth Proportional to 1,274,449,014.72, 1,758,506,169.14 and 709,919,847.61

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Solution

The fourth proportional to 1,274,449,014.72, 1,758,506,169.14 and 709,919,847.61 is: 979,559,336.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,449,014.72 : 1,758,506,169.14 = 709,919,847.61 : x
  2. Step 2: Convert to fraction form
    1,274,449,014.72/1,758,506,169.14 = 709,919,847.61/x
  3. Step 3: Cross multiply
    1,274,449,014.72x = 1,758,506,169.14 × 709,919,847.61
  4. Step 4: Simplify right side
    1,274,449,014.72x = 1,248,398,431,615,841,024
  5. Step 5: Solve for x
    x = 1,248,398,431,615,841,024/1,274,449,014.72
  6. Step 6: Final answer
    x = 979,559,336.78

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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.