Home / 72,245,192.28-99,698,429.58-39,205,441.50

Finding the Fourth Proportional to 72,245,192.28, 99,698,429.58 and 39,205,441.50

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Solution

The fourth proportional to 72,245,192.28, 99,698,429.58 and 39,205,441.50 is: 54,103,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,245,192.28 : 99,698,429.58 = 39,205,441.50 : x
  2. Step 2: Convert to fraction form
    72,245,192.28/99,698,429.58 = 39,205,441.50/x
  3. Step 3: Cross multiply
    72,245,192.28x = 99,698,429.58 × 39,205,441.50
  4. Step 4: Simplify right side
    72,245,192.28x = 3,908,720,948,540,559.50
  5. Step 5: Solve for x
    x = 3,908,720,948,540,559.50/72,245,192.28
  6. Step 6: Final answer
    x = 54,103,544.13

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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.