Home / 256,655,817.02-385,014,605.67-90,625,160.36

Finding the Fourth Proportional to 256,655,817.02, 385,014,605.67 and 90,625,160.36

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Solution

The fourth proportional to 256,655,817.02, 385,014,605.67 and 90,625,160.36 is: 135,948,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,655,817.02 : 385,014,605.67 = 90,625,160.36 : x
  2. Step 2: Convert to fraction form
    256,655,817.02/385,014,605.67 = 90,625,160.36/x
  3. Step 3: Cross multiply
    256,655,817.02x = 385,014,605.67 × 90,625,160.36
  4. Step 4: Simplify right side
    256,655,817.02x = 34,892,010,380,748,452
  5. Step 5: Solve for x
    x = 34,892,010,380,748,452/256,655,817.02
  6. Step 6: Final answer
    x = 135,948,644.32

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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.