Home / 28,071,971.80-42,107,957.70-15,936,746.20

Finding the Fourth Proportional to 28,071,971.80, 42,107,957.70 and 15,936,746.20

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Solution

The fourth proportional to 28,071,971.80, 42,107,957.70 and 15,936,746.20 is: 23,905,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071,971.80 : 42,107,957.70 = 15,936,746.20 : x
  2. Step 2: Convert to fraction form
    28,071,971.80/42,107,957.70 = 15,936,746.20/x
  3. Step 3: Cross multiply
    28,071,971.80x = 42,107,957.70 × 15,936,746.20
  4. Step 4: Simplify right side
    28,071,971.80x = 671,063,834,865,235.75
  5. Step 5: Solve for x
    x = 671,063,834,865,235.75/28,071,971.80
  6. Step 6: Final answer
    x = 23,905,119.30

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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.