Home / 72,110,421.69-99,517,264.31-40,737,589.59

Finding the Fourth Proportional to 72,110,421.69, 99,517,264.31 and 40,737,589.59

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Solution

The fourth proportional to 72,110,421.69, 99,517,264.31 and 40,737,589.59 is: 56,220,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,110,421.69 : 99,517,264.31 = 40,737,589.59 : x
  2. Step 2: Convert to fraction form
    72,110,421.69/99,517,264.31 = 40,737,589.59/x
  3. Step 3: Cross multiply
    72,110,421.69x = 99,517,264.31 × 40,737,589.59
  4. Step 4: Simplify right side
    72,110,421.69x = 4,054,093,470,376,647
  5. Step 5: Solve for x
    x = 4,054,093,470,376,647/72,110,421.69
  6. Step 6: Final answer
    x = 56,220,631.85

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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.