Home / 28,083,623.70-42,156,928.35-21,722,078.10

Finding the Fourth Proportional to 28,083,623.70, 42,156,928.35 and 21,722,078.10

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Solution

The fourth proportional to 28,083,623.70, 42,156,928.35 and 21,722,078.10 is: 32,607,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,623.70 : 42,156,928.35 = 21,722,078.10 : x
  2. Step 2: Convert to fraction form
    28,083,623.70/42,156,928.35 = 21,722,078.10/x
  3. Step 3: Cross multiply
    28,083,623.70x = 42,156,928.35 × 21,722,078.10
  4. Step 4: Simplify right side
    28,083,623.70x = 915,736,090,074,804.25
  5. Step 5: Solve for x
    x = 915,736,090,074,804.25/28,083,623.70
  6. Step 6: Final answer
    x = 32,607,476.15

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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.