Home / 191,574,013.20-287,361,019.80-55,263,843.60

Finding the Fourth Proportional to 191,574,013.20, 287,361,019.80 and 55,263,843.60

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Solution

The fourth proportional to 191,574,013.20, 287,361,019.80 and 55,263,843.60 is: 82,895,765.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,574,013.20 : 287,361,019.80 = 55,263,843.60 : x
  2. Step 2: Convert to fraction form
    191,574,013.20/287,361,019.80 = 55,263,843.60/x
  3. Step 3: Cross multiply
    191,574,013.20x = 287,361,019.80 × 55,263,843.60
  4. Step 4: Simplify right side
    191,574,013.20x = 15,880,674,454,963,704
  5. Step 5: Solve for x
    x = 15,880,674,454,963,704/191,574,013.20
  6. Step 6: Final answer
    x = 82,895,765.40

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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.