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Finding the Fourth Proportional to 40,386,484.80, 60,580,072.80 and 13,460,140.80

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Solution

The fourth proportional to 40,386,484.80, 60,580,072.80 and 13,460,140.80 is: 20,190,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,386,484.80 : 60,580,072.80 = 13,460,140.80 : x
  2. Step 2: Convert to fraction form
    40,386,484.80/60,580,072.80 = 13,460,140.80/x
  3. Step 3: Cross multiply
    40,386,484.80x = 60,580,072.80 × 13,460,140.80
  4. Step 4: Simplify right side
    40,386,484.80x = 815,416,309,562,250.25
  5. Step 5: Solve for x
    x = 815,416,309,562,250.25/40,386,484.80
  6. Step 6: Final answer
    x = 20,190,326.38

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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.