Home / 485,089,333.20-727,633,999.80-266,655,272.40

Finding the Fourth Proportional to 485,089,333.20, 727,633,999.80 and 266,655,272.40

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Solution

The fourth proportional to 485,089,333.20, 727,633,999.80 and 266,655,272.40 is: 399,982,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,089,333.20 : 727,633,999.80 = 266,655,272.40 : x
  2. Step 2: Convert to fraction form
    485,089,333.20/727,633,999.80 = 266,655,272.40/x
  3. Step 3: Cross multiply
    485,089,333.20x = 727,633,999.80 × 266,655,272.40
  4. Step 4: Simplify right side
    485,089,333.20x = 194,027,442,424,170,528
  5. Step 5: Solve for x
    x = 194,027,442,424,170,528/485,089,333.20
  6. Step 6: Final answer
    x = 399,982,908.60

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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.