Home / 279,278,176.04-385,403,881.32-161,871,607.28

Finding the Fourth Proportional to 279,278,176.04, 385,403,881.32 and 161,871,607.28

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Solution

The fourth proportional to 279,278,176.04, 385,403,881.32 and 161,871,607.28 is: 223,382,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,278,176.04 : 385,403,881.32 = 161,871,607.28 : x
  2. Step 2: Convert to fraction form
    279,278,176.04/385,403,881.32 = 161,871,607.28/x
  3. Step 3: Cross multiply
    279,278,176.04x = 385,403,881.32 × 161,871,607.28
  4. Step 4: Simplify right side
    279,278,176.04x = 62,385,945,721,218,768
  5. Step 5: Solve for x
    x = 62,385,945,721,218,768/279,278,176.04
  6. Step 6: Final answer
    x = 223,382,817.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.