Home / 820,908,655.17-1,233,327,405.17-526,380,821.41

Finding the Fourth Proportional to 820,908,655.17, 1,233,327,405.17 and 526,380,821.41

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Solution

The fourth proportional to 820,908,655.17, 1,233,327,405.17 and 526,380,821.41 is: 790,830,853.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,908,655.17 : 1,233,327,405.17 = 526,380,821.41 : x
  2. Step 2: Convert to fraction form
    820,908,655.17/1,233,327,405.17 = 526,380,821.41/x
  3. Step 3: Cross multiply
    820,908,655.17x = 1,233,327,405.17 × 526,380,821.41
  4. Step 4: Simplify right side
    820,908,655.17x = 649,199,892,601,917,696
  5. Step 5: Solve for x
    x = 649,199,892,601,917,696/820,908,655.17
  6. Step 6: Final answer
    x = 790,830,853.73

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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.