Home / 121,238,832.15-181,973,222.10-75,040,956.65

Finding the Fourth Proportional to 121,238,832.15, 181,973,222.10 and 75,040,956.65

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Solution

The fourth proportional to 121,238,832.15, 181,973,222.10 and 75,040,956.65 is: 112,632,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,238,832.15 : 181,973,222.10 = 75,040,956.65 : x
  2. Step 2: Convert to fraction form
    121,238,832.15/181,973,222.10 = 75,040,956.65/x
  3. Step 3: Cross multiply
    121,238,832.15x = 181,973,222.10 × 75,040,956.65
  4. Step 4: Simplify right side
    121,238,832.15x = 13,655,444,671,521,856
  5. Step 5: Solve for x
    x = 13,655,444,671,521,856/121,238,832.15
  6. Step 6: Final answer
    x = 112,632,598.23

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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.