Home / 115,338,252.78-159,149,666.71-70,051,431.74

Finding the Fourth Proportional to 115,338,252.78, 159,149,666.71 and 70,051,431.74

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Solution

The fourth proportional to 115,338,252.78, 159,149,666.71 and 70,051,431.74 is: 96,660,576.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,338,252.78 : 159,149,666.71 = 70,051,431.74 : x
  2. Step 2: Convert to fraction form
    115,338,252.78/159,149,666.71 = 70,051,431.74/x
  3. Step 3: Cross multiply
    115,338,252.78x = 159,149,666.71 × 70,051,431.74
  4. Step 4: Simplify right side
    115,338,252.78x = 11,148,662,013,271,132
  5. Step 5: Solve for x
    x = 11,148,662,013,271,132/115,338,252.78
  6. Step 6: Final answer
    x = 96,660,576.56

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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.