Home / 127,878,760.20-191,818,140.30-47,089,230.60

Finding the Fourth Proportional to 127,878,760.20, 191,818,140.30 and 47,089,230.60

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Solution

The fourth proportional to 127,878,760.20, 191,818,140.30 and 47,089,230.60 is: 70,633,845.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,878,760.20 : 191,818,140.30 = 47,089,230.60 : x
  2. Step 2: Convert to fraction form
    127,878,760.20/191,818,140.30 = 47,089,230.60/x
  3. Step 3: Cross multiply
    127,878,760.20x = 191,818,140.30 × 47,089,230.60
  4. Step 4: Simplify right side
    127,878,760.20x = 9,032,568,641,849,854
  5. Step 5: Solve for x
    x = 9,032,568,641,849,854/127,878,760.20
  6. Step 6: Final answer
    x = 70,633,845.90

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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.