Home / 1,913,265,096.40-2,869,897,685.10-459,242,520.40

Finding the Fourth Proportional to 1,913,265,096.40, 2,869,897,685.10 and 459,242,520.40

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Solution

The fourth proportional to 1,913,265,096.40, 2,869,897,685.10 and 459,242,520.40 is: 688,863,790.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,265,096.40 : 2,869,897,685.10 = 459,242,520.40 : x
  2. Step 2: Convert to fraction form
    1,913,265,096.40/2,869,897,685.10 = 459,242,520.40/x
  3. Step 3: Cross multiply
    1,913,265,096.40x = 2,869,897,685.10 × 459,242,520.40
  4. Step 4: Simplify right side
    1,913,265,096.40x = 1,317,979,046,195,449,344
  5. Step 5: Solve for x
    x = 1,317,979,046,195,449,344/1,913,265,096.40
  6. Step 6: Final answer
    x = 688,863,790.32

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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.