Home / 129,446,566.40-194,169,849.60-68,980,390.40

Finding the Fourth Proportional to 129,446,566.40, 194,169,849.60 and 68,980,390.40

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Solution

The fourth proportional to 129,446,566.40, 194,169,849.60 and 68,980,390.40 is: 103,470,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,446,566.40 : 194,169,849.60 = 68,980,390.40 : x
  2. Step 2: Convert to fraction form
    129,446,566.40/194,169,849.60 = 68,980,390.40/x
  3. Step 3: Cross multiply
    129,446,566.40x = 194,169,849.60 × 68,980,390.40
  4. Step 4: Simplify right side
    129,446,566.40x = 13,393,912,029,317,284
  5. Step 5: Solve for x
    x = 13,393,912,029,317,284/129,446,566.40
  6. Step 6: Final answer
    x = 103,470,585.60

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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.