Home / 28,110,855.34-38,792,707.05-15,720,807.88

Finding the Fourth Proportional to 28,110,855.34, 38,792,707.05 and 15,720,807.88

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Solution

The fourth proportional to 28,110,855.34, 38,792,707.05 and 15,720,807.88 is: 21,694,562.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110,855.34 : 38,792,707.05 = 15,720,807.88 : x
  2. Step 2: Convert to fraction form
    28,110,855.34/38,792,707.05 = 15,720,807.88/x
  3. Step 3: Cross multiply
    28,110,855.34x = 38,792,707.05 × 15,720,807.88
  4. Step 4: Simplify right side
    28,110,855.34x = 609,852,694,678,171.50
  5. Step 5: Solve for x
    x = 609,852,694,678,171.50/28,110,855.34
  6. Step 6: Final answer
    x = 21,694,562.02

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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.