Home / 161,778,869-242,283,105.51-103,305,426.65

Finding the Fourth Proportional to 161,778,869, 242,283,105.51 and 103,305,426.65

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Solution

The fourth proportional to 161,778,869, 242,283,105.51 and 103,305,426.65 is: 154,712,168.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,778,869 : 242,283,105.51 = 103,305,426.65 : x
  2. Step 2: Convert to fraction form
    161,778,869/242,283,105.51 = 103,305,426.65/x
  3. Step 3: Cross multiply
    161,778,869x = 242,283,105.51 × 103,305,426.65
  4. Step 4: Simplify right side
    161,778,869x = 25,029,159,584,797,516
  5. Step 5: Solve for x
    x = 25,029,159,584,797,516/161,778,869
  6. Step 6: Final answer
    x = 154,712,168.16

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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.