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Finding the Fourth Proportional to 169,902,969.28, 254,892,798.44 and 51,738,300.70

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Solution

The fourth proportional to 169,902,969.28, 254,892,798.44 and 51,738,300.70 is: 77,619,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,902,969.28 : 254,892,798.44 = 51,738,300.70 : x
  2. Step 2: Convert to fraction form
    169,902,969.28/254,892,798.44 = 51,738,300.70/x
  3. Step 3: Cross multiply
    169,902,969.28x = 254,892,798.44 × 51,738,300.70
  4. Step 4: Simplify right side
    169,902,969.28x = 13,187,720,251,953,212
  5. Step 5: Solve for x
    x = 13,187,720,251,953,212/169,902,969.28
  6. Step 6: Final answer
    x = 77,619,127.60

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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.