Home / 2,127,472,104.52-3,188,669,253.72-990,178,417.24

Finding the Fourth Proportional to 2,127,472,104.52, 3,188,669,253.72 and 990,178,417.24

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Solution

The fourth proportional to 2,127,472,104.52, 3,188,669,253.72 and 990,178,417.24 is: 1,484,085,957.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,127,472,104.52 : 3,188,669,253.72 = 990,178,417.24 : x
  2. Step 2: Convert to fraction form
    2,127,472,104.52/3,188,669,253.72 = 990,178,417.24/x
  3. Step 3: Cross multiply
    2,127,472,104.52x = 3,188,669,253.72 × 990,178,417.24
  4. Step 4: Simplify right side
    2,127,472,104.52x = 3,157,351,474,750,321,152
  5. Step 5: Solve for x
    x = 3,157,351,474,750,321,152/2,127,472,104.52
  6. Step 6: Final answer
    x = 1,484,085,957.25

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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.