Home / 426,352,357.95-639,589,542.72-131,272,444.77

Finding the Fourth Proportional to 426,352,357.95, 639,589,542.72 and 131,272,444.77

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Solution

The fourth proportional to 426,352,357.95, 639,589,542.72 and 131,272,444.77 is: 196,927,450.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,352,357.95 : 639,589,542.72 = 131,272,444.77 : x
  2. Step 2: Convert to fraction form
    426,352,357.95/639,589,542.72 = 131,272,444.77/x
  3. Step 3: Cross multiply
    426,352,357.95x = 639,589,542.72 × 131,272,444.77
  4. Step 4: Simplify right side
    426,352,357.95x = 83,960,482,922,180,752
  5. Step 5: Solve for x
    x = 83,960,482,922,180,752/426,352,357.95
  6. Step 6: Final answer
    x = 196,927,450.63

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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.