Home / 485,041,490.40-727,562,235.60-178,293,745.20

Finding the Fourth Proportional to 485,041,490.40, 727,562,235.60 and 178,293,745.20

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Solution

The fourth proportional to 485,041,490.40, 727,562,235.60 and 178,293,745.20 is: 267,440,617.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,041,490.40 : 727,562,235.60 = 178,293,745.20 : x
  2. Step 2: Convert to fraction form
    485,041,490.40/727,562,235.60 = 178,293,745.20/x
  3. Step 3: Cross multiply
    485,041,490.40x = 727,562,235.60 × 178,293,745.20
  4. Step 4: Simplify right side
    485,041,490.40x = 129,719,795,851,208,768
  5. Step 5: Solve for x
    x = 129,719,795,851,208,768/485,041,490.40
  6. Step 6: Final answer
    x = 267,440,617.80

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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.