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Finding the Fourth Proportional to 85,001,602.80, 127,289,827.80 and 67,995,490.80

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Solution

The fourth proportional to 85,001,602.80, 127,289,827.80 and 67,995,490.80 is: 101,823,189.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,001,602.80 : 127,289,827.80 = 67,995,490.80 : x
  2. Step 2: Convert to fraction form
    85,001,602.80/127,289,827.80 = 67,995,490.80/x
  3. Step 3: Cross multiply
    85,001,602.80x = 127,289,827.80 × 67,995,490.80
  4. Step 4: Simplify right side
    85,001,602.80x = 8,655,134,315,108,484
  5. Step 5: Solve for x
    x = 8,655,134,315,108,484/85,001,602.80
  6. Step 6: Final answer
    x = 101,823,189.56

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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.