Home / 83,043,081.20-124,564,621.80-78,886,031.60

Finding the Fourth Proportional to 83,043,081.20, 124,564,621.80 and 78,886,031.60

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Solution

The fourth proportional to 83,043,081.20, 124,564,621.80 and 78,886,031.60 is: 118,329,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,043,081.20 : 124,564,621.80 = 78,886,031.60 : x
  2. Step 2: Convert to fraction form
    83,043,081.20/124,564,621.80 = 78,886,031.60/x
  3. Step 3: Cross multiply
    83,043,081.20x = 124,564,621.80 × 78,886,031.60
  4. Step 4: Simplify right side
    83,043,081.20x = 9,826,408,691,556,848
  5. Step 5: Solve for x
    x = 9,826,408,691,556,848/83,043,081.20
  6. Step 6: Final answer
    x = 118,329,047.40

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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.