Home / 28,071,970.80-42,107,956.20-15,936,745.20

Finding the Fourth Proportional to 28,071,970.80, 42,107,956.20 and 15,936,745.20

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Solution

The fourth proportional to 28,071,970.80, 42,107,956.20 and 15,936,745.20 is: 23,905,117.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071,970.80 : 42,107,956.20 = 15,936,745.20 : x
  2. Step 2: Convert to fraction form
    28,071,970.80/42,107,956.20 = 15,936,745.20/x
  3. Step 3: Cross multiply
    28,071,970.80x = 42,107,956.20 × 15,936,745.20
  4. Step 4: Simplify right side
    28,071,970.80x = 671,063,768,852,160.25
  5. Step 5: Solve for x
    x = 671,063,768,852,160.25/28,071,970.80
  6. Step 6: Final answer
    x = 23,905,117.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.