Home / 28,775,490.67-39,710,711.51-15,723,594.95

Finding the Fourth Proportional to 28,775,490.67, 39,710,711.51 and 15,723,594.95

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Solution

The fourth proportional to 28,775,490.67, 39,710,711.51 and 15,723,594.95 is: 21,698,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775,490.67 : 39,710,711.51 = 15,723,594.95 : x
  2. Step 2: Convert to fraction form
    28,775,490.67/39,710,711.51 = 15,723,594.95/x
  3. Step 3: Cross multiply
    28,775,490.67x = 39,710,711.51 × 15,723,594.95
  4. Step 4: Simplify right side
    28,775,490.67x = 624,395,142,959,542.75
  5. Step 5: Solve for x
    x = 624,395,142,959,542.75/28,775,490.67
  6. Step 6: Final answer
    x = 21,698,853.03

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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.