Home / 154,853,628.32-213,703,644.80-84,285,827.10

Finding the Fourth Proportional to 154,853,628.32, 213,703,644.80 and 84,285,827.10

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Solution

The fourth proportional to 154,853,628.32, 213,703,644.80 and 84,285,827.10 is: 116,317,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,853,628.32 : 213,703,644.80 = 84,285,827.10 : x
  2. Step 2: Convert to fraction form
    154,853,628.32/213,703,644.80 = 84,285,827.10/x
  3. Step 3: Cross multiply
    154,853,628.32x = 213,703,644.80 × 84,285,827.10
  4. Step 4: Simplify right side
    154,853,628.32x = 18,012,188,454,762,666
  5. Step 5: Solve for x
    x = 18,012,188,454,762,666/154,853,628.32
  6. Step 6: Final answer
    x = 116,317,509.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.