Home / 40,478,929.41-55,861,363.49-22,143,821.25

Finding the Fourth Proportional to 40,478,929.41, 55,861,363.49 and 22,143,821.25

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Solution

The fourth proportional to 40,478,929.41, 55,861,363.49 and 22,143,821.25 is: 30,558,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,478,929.41 : 55,861,363.49 = 22,143,821.25 : x
  2. Step 2: Convert to fraction form
    40,478,929.41/55,861,363.49 = 22,143,821.25/x
  3. Step 3: Cross multiply
    40,478,929.41x = 55,861,363.49 × 22,143,821.25
  4. Step 4: Simplify right side
    40,478,929.41x = 1,236,984,047,793,117
  5. Step 5: Solve for x
    x = 1,236,984,047,793,117/40,478,929.41
  6. Step 6: Final answer
    x = 30,558,714.52

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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.