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Finding the Fourth Proportional to 169,908,015.20, 254,484,109.20 and 139,674,927.20

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Solution

The fourth proportional to 169,908,015.20, 254,484,109.20 and 139,674,927.20 is: 209,201,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,908,015.20 : 254,484,109.20 = 139,674,927.20 : x
  2. Step 2: Convert to fraction form
    169,908,015.20/254,484,109.20 = 139,674,927.20/x
  3. Step 3: Cross multiply
    169,908,015.20x = 254,484,109.20 × 139,674,927.20
  4. Step 4: Simplify right side
    169,908,015.20x = 35,545,049,426,066,844
  5. Step 5: Solve for x
    x = 35,545,049,426,066,844/169,908,015.20
  6. Step 6: Final answer
    x = 209,201,722.38

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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.