Home / 145,157,077.90-218,060,020.05-121,269,205.90

Finding the Fourth Proportional to 145,157,077.90, 218,060,020.05 and 121,269,205.90

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Solution

The fourth proportional to 145,157,077.90, 218,060,020.05 and 121,269,205.90 is: 182,174,826.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,157,077.90 : 218,060,020.05 = 121,269,205.90 : x
  2. Step 2: Convert to fraction form
    145,157,077.90/218,060,020.05 = 121,269,205.90/x
  3. Step 3: Cross multiply
    145,157,077.90x = 218,060,020.05 × 121,269,205.90
  4. Step 4: Simplify right side
    145,157,077.90x = 26,443,965,470,001,580
  5. Step 5: Solve for x
    x = 26,443,965,470,001,580/145,157,077.90
  6. Step 6: Final answer
    x = 182,174,826.42

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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.