Home / 84,250,787.16-115,819,707.03-72,446,827.80

Finding the Fourth Proportional to 84,250,787.16, 115,819,707.03 and 72,446,827.80

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Solution

The fourth proportional to 84,250,787.16, 115,819,707.03 and 72,446,827.80 is: 99,592,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,250,787.16 : 115,819,707.03 = 72,446,827.80 : x
  2. Step 2: Convert to fraction form
    84,250,787.16/115,819,707.03 = 72,446,827.80/x
  3. Step 3: Cross multiply
    84,250,787.16x = 115,819,707.03 × 72,446,827.80
  4. Step 4: Simplify right side
    84,250,787.16x = 8,390,770,371,048,859
  5. Step 5: Solve for x
    x = 8,390,770,371,048,859/84,250,787.16
  6. Step 6: Final answer
    x = 99,592,783.09

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.