Home / 688,766,295,926.80-1,033,149,443,890.20-679,478,691,293.20

Finding the Fourth Proportional to 688,766,295,926.80, 1,033,149,443,890.20 and 679,478,691,293.20

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Solution

The fourth proportional to 688,766,295,926.80, 1,033,149,443,890.20 and 679,478,691,293.20 is: 1,019,218,036,939.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,766,295,926.80 : 1,033,149,443,890.20 = 679,478,691,293.20 : x
  2. Step 2: Convert to fraction form
    688,766,295,926.80/1,033,149,443,890.20 = 679,478,691,293.20/x
  3. Step 3: Cross multiply
    688,766,295,926.80x = 1,033,149,443,890.20 × 679,478,691,293.20
  4. Step 4: Simplify right side
    688,766,295,926.80x = 702,003,032,044,810,438,443,008
  5. Step 5: Solve for x
    x = 702,003,032,044,810,438,443,008/688,766,295,926.80
  6. Step 6: Final answer
    x = 1,019,218,036,939.80

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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.