Home / 128,006,962.02-176,650,072.92-69,269,621.04

Finding the Fourth Proportional to 128,006,962.02, 176,650,072.92 and 69,269,621.04

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Solution

The fourth proportional to 128,006,962.02, 176,650,072.92 and 69,269,621.04 is: 95,592,328.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,006,962.02 : 176,650,072.92 = 69,269,621.04 : x
  2. Step 2: Convert to fraction form
    128,006,962.02/176,650,072.92 = 69,269,621.04/x
  3. Step 3: Cross multiply
    128,006,962.02x = 176,650,072.92 × 69,269,621.04
  4. Step 4: Simplify right side
    128,006,962.02x = 12,236,483,607,856,766
  5. Step 5: Solve for x
    x = 12,236,483,607,856,766/128,006,962.02
  6. Step 6: Final answer
    x = 95,592,328.84

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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.