Home / 309,120,660.40-463,680,990.60-165,793,428.40

Finding the Fourth Proportional to 309,120,660.40, 463,680,990.60 and 165,793,428.40

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Solution

The fourth proportional to 309,120,660.40, 463,680,990.60 and 165,793,428.40 is: 248,690,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,120,660.40 : 463,680,990.60 = 165,793,428.40 : x
  2. Step 2: Convert to fraction form
    309,120,660.40/463,680,990.60 = 165,793,428.40/x
  3. Step 3: Cross multiply
    309,120,660.40x = 463,680,990.60 × 165,793,428.40
  4. Step 4: Simplify right side
    309,120,660.40x = 76,875,261,115,482,176
  5. Step 5: Solve for x
    x = 76,875,261,115,482,176/309,120,660.40
  6. Step 6: Final answer
    x = 248,690,142.60

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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.