Home / 69,984,659.40-104,976,989.10-42,774,880.20

Finding the Fourth Proportional to 69,984,659.40, 104,976,989.10 and 42,774,880.20

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Solution

The fourth proportional to 69,984,659.40, 104,976,989.10 and 42,774,880.20 is: 64,162,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,659.40 : 104,976,989.10 = 42,774,880.20 : x
  2. Step 2: Convert to fraction form
    69,984,659.40/104,976,989.10 = 42,774,880.20/x
  3. Step 3: Cross multiply
    69,984,659.40x = 104,976,989.10 × 42,774,880.20
  4. Step 4: Simplify right side
    69,984,659.40x = 4,490,378,132,509,206
  5. Step 5: Solve for x
    x = 4,490,378,132,509,206/69,984,659.40
  6. Step 6: Final answer
    x = 64,162,320.30

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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.