Home / 915,060,239.22-1,262,694,892.77-513,190,302.72

Finding the Fourth Proportional to 915,060,239.22, 1,262,694,892.77 and 513,190,302.72

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Solution

The fourth proportional to 915,060,239.22, 1,262,694,892.77 and 513,190,302.72 is: 708,153,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,060,239.22 : 1,262,694,892.77 = 513,190,302.72 : x
  2. Step 2: Convert to fraction form
    915,060,239.22/1,262,694,892.77 = 513,190,302.72/x
  3. Step 3: Cross multiply
    915,060,239.22x = 1,262,694,892.77 × 513,190,302.72
  4. Step 4: Simplify right side
    915,060,239.22x = 648,002,774,263,634,304
  5. Step 5: Solve for x
    x = 648,002,774,263,634,304/915,060,239.22
  6. Step 6: Final answer
    x = 708,153,131.88

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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.