Home / 78,390,026.05-117,585,039.08-27,272,044.87

Finding the Fourth Proportional to 78,390,026.05, 117,585,039.08 and 27,272,044.87

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Solution

The fourth proportional to 78,390,026.05, 117,585,039.08 and 27,272,044.87 is: 40,908,067.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,390,026.05 : 117,585,039.08 = 27,272,044.87 : x
  2. Step 2: Convert to fraction form
    78,390,026.05/117,585,039.08 = 27,272,044.87/x
  3. Step 3: Cross multiply
    78,390,026.05x = 117,585,039.08 × 27,272,044.87
  4. Step 4: Simplify right side
    78,390,026.05x = 3,206,784,461,106,178
  5. Step 5: Solve for x
    x = 3,206,784,461,106,178/78,390,026.05
  6. Step 6: Final answer
    x = 40,908,067.30

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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.