Home / 84,912,686.92-117,142,625.80-53,956,248.60

Finding the Fourth Proportional to 84,912,686.92, 117,142,625.80 and 53,956,248.60

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Solution

The fourth proportional to 84,912,686.92, 117,142,625.80 and 53,956,248.60 is: 74,436,186.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,912,686.92 : 117,142,625.80 = 53,956,248.60 : x
  2. Step 2: Convert to fraction form
    84,912,686.92/117,142,625.80 = 53,956,248.60/x
  3. Step 3: Cross multiply
    84,912,686.92x = 117,142,625.80 × 53,956,248.60
  4. Step 4: Simplify right side
    84,912,686.92x = 6,320,576,639,321,574
  5. Step 5: Solve for x
    x = 6,320,576,639,321,574/84,912,686.92
  6. Step 6: Final answer
    x = 74,436,186.97

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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.