Home / 159,723,009.18-220,417,111.44-90,108,393.48

Finding the Fourth Proportional to 159,723,009.18, 220,417,111.44 and 90,108,393.48

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Solution

The fourth proportional to 159,723,009.18, 220,417,111.44 and 90,108,393.48 is: 124,349,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,723,009.18 : 220,417,111.44 = 90,108,393.48 : x
  2. Step 2: Convert to fraction form
    159,723,009.18/220,417,111.44 = 90,108,393.48/x
  3. Step 3: Cross multiply
    159,723,009.18x = 220,417,111.44 × 90,108,393.48
  4. Step 4: Simplify right side
    159,723,009.18x = 19,861,431,807,360,532
  5. Step 5: Solve for x
    x = 19,861,431,807,360,532/159,723,009.18
  6. Step 6: Final answer
    x = 124,349,221.25

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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.