Home / 820,425,508.88-1,132,006,210.44-485,731,839.92

Finding the Fourth Proportional to 820,425,508.88, 1,132,006,210.44 and 485,731,839.92

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Solution

The fourth proportional to 820,425,508.88, 1,132,006,210.44 and 485,731,839.92 is: 670,202,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,425,508.88 : 1,132,006,210.44 = 485,731,839.92 : x
  2. Step 2: Convert to fraction form
    820,425,508.88/1,132,006,210.44 = 485,731,839.92/x
  3. Step 3: Cross multiply
    820,425,508.88x = 1,132,006,210.44 × 485,731,839.92
  4. Step 4: Simplify right side
    820,425,508.88x = 549,851,459,397,887,936
  5. Step 5: Solve for x
    x = 549,851,459,397,887,936/820,425,508.88
  6. Step 6: Final answer
    x = 670,202,783.12

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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.