Home / 86,585,940.83-129,895,621.12-28,277,943.47

Finding the Fourth Proportional to 86,585,940.83, 129,895,621.12 and 28,277,943.47

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Solution

The fourth proportional to 86,585,940.83, 129,895,621.12 and 28,277,943.47 is: 42,422,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,585,940.83 : 129,895,621.12 = 28,277,943.47 : x
  2. Step 2: Convert to fraction form
    86,585,940.83/129,895,621.12 = 28,277,943.47/x
  3. Step 3: Cross multiply
    86,585,940.83x = 129,895,621.12 × 28,277,943.47
  4. Step 4: Simplify right side
    86,585,940.83x = 3,673,181,031,635,538.50
  5. Step 5: Solve for x
    x = 3,673,181,031,635,538.50/86,585,940.83
  6. Step 6: Final answer
    x = 42,422,372.46

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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.