Home / 28,385,607.36-39,172,132.50-15,332,866.68

Finding the Fourth Proportional to 28,385,607.36, 39,172,132.50 and 15,332,866.68

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Solution

The fourth proportional to 28,385,607.36, 39,172,132.50 and 15,332,866.68 is: 21,159,352.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,607.36 : 39,172,132.50 = 15,332,866.68 : x
  2. Step 2: Convert to fraction form
    28,385,607.36/39,172,132.50 = 15,332,866.68/x
  3. Step 3: Cross multiply
    28,385,607.36x = 39,172,132.50 × 15,332,866.68
  4. Step 4: Simplify right side
    28,385,607.36x = 600,621,085,193,795.12
  5. Step 5: Solve for x
    x = 600,621,085,193,795.12/28,385,607.36
  6. Step 6: Final answer
    x = 21,159,352.96

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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.