Home / 31,065,561.92-42,860,975.65-18,010,215.61

Finding the Fourth Proportional to 31,065,561.92, 42,860,975.65 and 18,010,215.61

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Solution

The fourth proportional to 31,065,561.92, 42,860,975.65 and 18,010,215.61 is: 24,848,590.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,065,561.92 : 42,860,975.65 = 18,010,215.61 : x
  2. Step 2: Convert to fraction form
    31,065,561.92/42,860,975.65 = 18,010,215.61/x
  3. Step 3: Cross multiply
    31,065,561.92x = 42,860,975.65 × 18,010,215.61
  4. Step 4: Simplify right side
    31,065,561.92x = 771,935,412,559,282
  5. Step 5: Solve for x
    x = 771,935,412,559,282/31,065,561.92
  6. Step 6: Final answer
    x = 24,848,590.04

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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.