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Finding the Fourth Proportional to 169,908,036.70, 254,484,141.45 and 139,674,948.70

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Solution

The fourth proportional to 169,908,036.70, 254,484,141.45 and 139,674,948.70 is: 209,201,754.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,908,036.70 : 254,484,141.45 = 139,674,948.70 : x
  2. Step 2: Convert to fraction form
    169,908,036.70/254,484,141.45 = 139,674,948.70/x
  3. Step 3: Cross multiply
    169,908,036.70x = 254,484,141.45 × 139,674,948.70
  4. Step 4: Simplify right side
    169,908,036.70x = 35,545,059,401,992,288
  5. Step 5: Solve for x
    x = 35,545,059,401,992,288/169,908,036.70
  6. Step 6: Final answer
    x = 209,201,754.62

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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.