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Finding the Fourth Proportional to 272,666,978.76, 409,605,810.57 and 169,112,710.38

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Solution

The fourth proportional to 272,666,978.76, 409,605,810.57 and 169,112,710.38 is: 254,044,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,666,978.76 : 409,605,810.57 = 169,112,710.38 : x
  2. Step 2: Convert to fraction form
    272,666,978.76/409,605,810.57 = 169,112,710.38/x
  3. Step 3: Cross multiply
    272,666,978.76x = 409,605,810.57 × 169,112,710.38
  4. Step 4: Simplify right side
    272,666,978.76x = 69,269,548,812,889,552
  5. Step 5: Solve for x
    x = 69,269,548,812,889,552/272,666,978.76
  6. Step 6: Final answer
    x = 254,044,509.27

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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.