Home / 129,384,085.40-194,020,140.90-52,681,621.40

Finding the Fourth Proportional to 129,384,085.40, 194,020,140.90 and 52,681,621.40

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Solution

The fourth proportional to 129,384,085.40, 194,020,140.90 and 52,681,621.40 is: 78,999,635.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,384,085.40 : 194,020,140.90 = 52,681,621.40 : x
  2. Step 2: Convert to fraction form
    129,384,085.40/194,020,140.90 = 52,681,621.40/x
  3. Step 3: Cross multiply
    129,384,085.40x = 194,020,140.90 × 52,681,621.40
  4. Step 4: Simplify right side
    129,384,085.40x = 10,221,295,606,868,456
  5. Step 5: Solve for x
    x = 10,221,295,606,868,456/129,384,085.40
  6. Step 6: Final answer
    x = 78,999,635.66

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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.