Home / 163,840,648.78-226,091,020.89-89,486,405.02

Finding the Fourth Proportional to 163,840,648.78, 226,091,020.89 and 89,486,405.02

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Solution

The fourth proportional to 163,840,648.78, 226,091,020.89 and 89,486,405.02 is: 123,486,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,840,648.78 : 226,091,020.89 = 89,486,405.02 : x
  2. Step 2: Convert to fraction form
    163,840,648.78/226,091,020.89 = 89,486,405.02/x
  3. Step 3: Cross multiply
    163,840,648.78x = 226,091,020.89 × 89,486,405.02
  4. Step 4: Simplify right side
    163,840,648.78x = 20,232,072,666,518,168
  5. Step 5: Solve for x
    x = 20,232,072,666,518,168/163,840,648.78
  6. Step 6: Final answer
    x = 123,486,282.66

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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.