Home / 129,343,116.80-194,014,675.20-121,690,366.40

Finding the Fourth Proportional to 129,343,116.80, 194,014,675.20 and 121,690,366.40

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Solution

The fourth proportional to 129,343,116.80, 194,014,675.20 and 121,690,366.40 is: 182,535,549.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,343,116.80 : 194,014,675.20 = 121,690,366.40 : x
  2. Step 2: Convert to fraction form
    129,343,116.80/194,014,675.20 = 121,690,366.40/x
  3. Step 3: Cross multiply
    129,343,116.80x = 194,014,675.20 × 121,690,366.40
  4. Step 4: Simplify right side
    129,343,116.80x = 23,609,716,912,064,992
  5. Step 5: Solve for x
    x = 23,609,716,912,064,992/129,343,116.80
  6. Step 6: Final answer
    x = 182,535,549.60

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1.5x scale

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.