Home / 191,986,399.20-287,979,598.80-153,722,647.20

Finding the Fourth Proportional to 191,986,399.20, 287,979,598.80 and 153,722,647.20

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Solution

The fourth proportional to 191,986,399.20, 287,979,598.80 and 153,722,647.20 is: 230,583,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,986,399.20 : 287,979,598.80 = 153,722,647.20 : x
  2. Step 2: Convert to fraction form
    191,986,399.20/287,979,598.80 = 153,722,647.20/x
  3. Step 3: Cross multiply
    191,986,399.20x = 287,979,598.80 × 153,722,647.20
  4. Step 4: Simplify right side
    191,986,399.20x = 44,268,986,267,129,944
  5. Step 5: Solve for x
    x = 44,268,986,267,129,944/191,986,399.20
  6. Step 6: Final answer
    x = 230,583,970.80

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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.