Home / 72,707,950.56-100,333,470-39,666,232.80

Finding the Fourth Proportional to 72,707,950.56, 100,333,470 and 39,666,232.80

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Solution

The fourth proportional to 72,707,950.56, 100,333,470 and 39,666,232.80 is: 54,737,490.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,707,950.56 : 100,333,470 = 39,666,232.80 : x
  2. Step 2: Convert to fraction form
    72,707,950.56/100,333,470 = 39,666,232.80/x
  3. Step 3: Cross multiply
    72,707,950.56x = 100,333,470 × 39,666,232.80
  4. Step 4: Simplify right side
    72,707,950.56x = 3,979,850,778,651,815.50
  5. Step 5: Solve for x
    x = 3,979,850,778,651,815.50/72,707,950.56
  6. Step 6: Final answer
    x = 54,737,490.85

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1.5x scale

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.