Home / 31,547,750.69-43,558,954.11-20,390,843.36

Finding the Fourth Proportional to 31,547,750.69, 43,558,954.11 and 20,390,843.36

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Solution

The fourth proportional to 31,547,750.69, 43,558,954.11 and 20,390,843.36 is: 28,154,267.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547,750.69 : 43,558,954.11 = 20,390,843.36 : x
  2. Step 2: Convert to fraction form
    31,547,750.69/43,558,954.11 = 20,390,843.36/x
  3. Step 3: Cross multiply
    31,547,750.69x = 43,558,954.11 × 20,390,843.36
  4. Step 4: Simplify right side
    31,547,750.69x = 888,203,809,964,643.50
  5. Step 5: Solve for x
    x = 888,203,809,964,643.50/31,547,750.69
  6. Step 6: Final answer
    x = 28,154,267.44

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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.