Home / 206,699,792.40-310,049,688.60-130,172,288.40

Finding the Fourth Proportional to 206,699,792.40, 310,049,688.60 and 130,172,288.40

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Solution

The fourth proportional to 206,699,792.40, 310,049,688.60 and 130,172,288.40 is: 195,258,432.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,699,792.40 : 310,049,688.60 = 130,172,288.40 : x
  2. Step 2: Convert to fraction form
    206,699,792.40/310,049,688.60 = 130,172,288.40/x
  3. Step 3: Cross multiply
    206,699,792.40x = 310,049,688.60 × 130,172,288.40
  4. Step 4: Simplify right side
    206,699,792.40x = 40,359,877,482,769,400
  5. Step 5: Solve for x
    x = 40,359,877,482,769,400/206,699,792.40
  6. Step 6: Final answer
    x = 195,258,432.60

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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.