Home / 688,766,295,664.80-1,033,149,443,497.20-679,478,691,031.20

Finding the Fourth Proportional to 688,766,295,664.80, 1,033,149,443,497.20 and 679,478,691,031.20

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Solution

The fourth proportional to 688,766,295,664.80, 1,033,149,443,497.20 and 679,478,691,031.20 is: 1,019,218,036,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,766,295,664.80 : 1,033,149,443,497.20 = 679,478,691,031.20 : x
  2. Step 2: Convert to fraction form
    688,766,295,664.80/1,033,149,443,497.20 = 679,478,691,031.20/x
  3. Step 3: Cross multiply
    688,766,295,664.80x = 1,033,149,443,497.20 × 679,478,691,031.20
  4. Step 4: Simplify right side
    688,766,295,664.80x = 702,003,031,507,090,062,442,496
  5. Step 5: Solve for x
    x = 702,003,031,507,090,062,442,496/688,766,295,664.80
  6. Step 6: Final answer
    x = 1,019,218,036,546.80

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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.