Home / 191,574,010.20-287,361,015.30-55,263,840.60

Finding the Fourth Proportional to 191,574,010.20, 287,361,015.30 and 55,263,840.60

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Solution

The fourth proportional to 191,574,010.20, 287,361,015.30 and 55,263,840.60 is: 82,895,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,574,010.20 : 287,361,015.30 = 55,263,840.60 : x
  2. Step 2: Convert to fraction form
    191,574,010.20/287,361,015.30 = 55,263,840.60/x
  3. Step 3: Cross multiply
    191,574,010.20x = 287,361,015.30 × 55,263,840.60
  4. Step 4: Simplify right side
    191,574,010.20x = 15,880,673,344,193,362
  5. Step 5: Solve for x
    x = 15,880,673,344,193,362/191,574,010.20
  6. Step 6: Final answer
    x = 82,895,760.90

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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.