Home / 680,862,118.20-1,021,293,177.30-405,363,103.80

Finding the Fourth Proportional to 680,862,118.20, 1,021,293,177.30 and 405,363,103.80

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Solution

The fourth proportional to 680,862,118.20, 1,021,293,177.30 and 405,363,103.80 is: 608,044,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,862,118.20 : 1,021,293,177.30 = 405,363,103.80 : x
  2. Step 2: Convert to fraction form
    680,862,118.20/1,021,293,177.30 = 405,363,103.80/x
  3. Step 3: Cross multiply
    680,862,118.20x = 1,021,293,177.30 × 405,363,103.80
  4. Step 4: Simplify right side
    680,862,118.20x = 413,994,572,240,091,712
  5. Step 5: Solve for x
    x = 413,994,572,240,091,712/680,862,118.20
  6. Step 6: Final answer
    x = 608,044,655.70

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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.