Home / 120,853,611.01-166,778,007.20-65,849,467.51

Finding the Fourth Proportional to 120,853,611.01, 166,778,007.20 and 65,849,467.51

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Solution

The fourth proportional to 120,853,611.01, 166,778,007.20 and 65,849,467.51 is: 90,872,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,853,611.01 : 166,778,007.20 = 65,849,467.51 : x
  2. Step 2: Convert to fraction form
    120,853,611.01/166,778,007.20 = 65,849,467.51/x
  3. Step 3: Cross multiply
    120,853,611.01x = 166,778,007.20 × 65,849,467.51
  4. Step 4: Simplify right side
    120,853,611.01x = 10,982,242,966,169,698
  5. Step 5: Solve for x
    x = 10,982,242,966,169,698/120,853,611.01
  6. Step 6: Final answer
    x = 90,872,278.24

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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.