Home / 28,385,581.48-39,172,117.59-15,332,840.12

Finding the Fourth Proportional to 28,385,581.48, 39,172,117.59 and 15,332,840.12

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Solution

The fourth proportional to 28,385,581.48, 39,172,117.59 and 15,332,840.12 is: 21,159,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,385,581.48 : 39,172,117.59 = 15,332,840.12 : x
  2. Step 2: Convert to fraction form
    28,385,581.48/39,172,117.59 = 15,332,840.12/x
  3. Step 3: Cross multiply
    28,385,581.48x = 39,172,117.59 × 15,332,840.12
  4. Step 4: Simplify right side
    28,385,581.48x = 600,619,816,267,240.12
  5. Step 5: Solve for x
    x = 600,619,816,267,240.12/28,385,581.48
  6. Step 6: Final answer
    x = 21,159,327.55

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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.