Home / 40,089,305.90-55,323,242.15-21,754,591.40

Finding the Fourth Proportional to 40,089,305.90, 55,323,242.15 and 21,754,591.40

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Solution

The fourth proportional to 40,089,305.90, 55,323,242.15 and 21,754,591.40 is: 30,021,336.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,089,305.90 : 55,323,242.15 = 21,754,591.40 : x
  2. Step 2: Convert to fraction form
    40,089,305.90/55,323,242.15 = 21,754,591.40/x
  3. Step 3: Cross multiply
    40,089,305.90x = 55,323,242.15 × 21,754,591.40
  4. Step 4: Simplify right side
    40,089,305.90x = 1,203,534,527,511,118.50
  5. Step 5: Solve for x
    x = 1,203,534,527,511,118.50/40,089,305.90
  6. Step 6: Final answer
    x = 30,021,336.13

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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.