Home / 311,865,163,606.60-430,376,452,718.76-172,818,767,940.68

Finding the Fourth Proportional to 311,865,163,606.60, 430,376,452,718.76 and 172,818,767,940.68

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Solution

The fourth proportional to 311,865,163,606.60, 430,376,452,718.76 and 172,818,767,940.68 is: 238,491,300,052.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,865,163,606.60 : 430,376,452,718.76 = 172,818,767,940.68 : x
  2. Step 2: Convert to fraction form
    311,865,163,606.60/430,376,452,718.76 = 172,818,767,940.68/x
  3. Step 3: Cross multiply
    311,865,163,606.60x = 430,376,452,718.76 × 172,818,767,940.68
  4. Step 4: Simplify right side
    311,865,163,606.60x = 74,377,128,309,536,417,906,688
  5. Step 5: Solve for x
    x = 74,377,128,309,536,417,906,688/311,865,163,606.60
  6. Step 6: Final answer
    x = 238,491,300,052.22

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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.