Home / 194,890,782.12-292,313,417.40-78,301,418.46

Finding the Fourth Proportional to 194,890,782.12, 292,313,417.40 and 78,301,418.46

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Solution

The fourth proportional to 194,890,782.12, 292,313,417.40 and 78,301,418.46 is: 117,442,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,890,782.12 : 292,313,417.40 = 78,301,418.46 : x
  2. Step 2: Convert to fraction form
    194,890,782.12/292,313,417.40 = 78,301,418.46/x
  3. Step 3: Cross multiply
    194,890,782.12x = 292,313,417.40 × 78,301,418.46
  4. Step 4: Simplify right side
    194,890,782.12x = 22,888,555,217,310,040
  5. Step 5: Solve for x
    x = 22,888,555,217,310,040/194,890,782.12
  6. Step 6: Final answer
    x = 117,442,985.08

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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.