Home / 191,586,643.20-287,379,964.80-55,276,473.60

Finding the Fourth Proportional to 191,586,643.20, 287,379,964.80 and 55,276,473.60

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Solution

The fourth proportional to 191,586,643.20, 287,379,964.80 and 55,276,473.60 is: 82,914,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,586,643.20 : 287,379,964.80 = 55,276,473.60 : x
  2. Step 2: Convert to fraction form
    191,586,643.20/287,379,964.80 = 55,276,473.60/x
  3. Step 3: Cross multiply
    191,586,643.20x = 287,379,964.80 × 55,276,473.60
  4. Step 4: Simplify right side
    191,586,643.20x = 15,885,351,037,436,130
  5. Step 5: Solve for x
    x = 15,885,351,037,436,130/191,586,643.20
  6. Step 6: Final answer
    x = 82,914,710.40

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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.