Home / 28,835,805.60-39,793,266.36-15,604,972.92

Finding the Fourth Proportional to 28,835,805.60, 39,793,266.36 and 15,604,972.92

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Solution

The fourth proportional to 28,835,805.60, 39,793,266.36 and 15,604,972.92 is: 21,534,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835,805.60 : 39,793,266.36 = 15,604,972.92 : x
  2. Step 2: Convert to fraction form
    28,835,805.60/39,793,266.36 = 15,604,972.92/x
  3. Step 3: Cross multiply
    28,835,805.60x = 39,793,266.36 × 15,604,972.92
  4. Step 4: Simplify right side
    28,835,805.60x = 620,972,843,946,147
  5. Step 5: Solve for x
    x = 620,972,843,946,147/28,835,805.60
  6. Step 6: Final answer
    x = 21,534,783.96

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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.