Home / 645,130,660,788-890,280,399,056.52-356,098,974,720

Finding the Fourth Proportional to 645,130,660,788, 890,280,399,056.52 and 356,098,974,720

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Solution

The fourth proportional to 645,130,660,788, 890,280,399,056.52 and 356,098,974,720 is: 491,416,633,229.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,130,660,788 : 890,280,399,056.52 = 356,098,974,720 : x
  2. Step 2: Convert to fraction form
    645,130,660,788/890,280,399,056.52 = 356,098,974,720/x
  3. Step 3: Cross multiply
    645,130,660,788x = 890,280,399,056.52 × 356,098,974,720
  4. Step 4: Simplify right side
    645,130,660,788x = 317,027,937,317,339,258,683,392
  5. Step 5: Solve for x
    x = 317,027,937,317,339,258,683,392/645,130,660,788
  6. Step 6: Final answer
    x = 491,416,633,229.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.