Home / 284,631,725,418.65-392,799,008,153.47-156,173,139,991.21

Finding the Fourth Proportional to 284,631,725,418.65, 392,799,008,153.47 and 156,173,139,991.21

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Solution

The fourth proportional to 284,631,725,418.65, 392,799,008,153.47 and 156,173,139,991.21 is: 215,522,898,575.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,631,725,418.65 : 392,799,008,153.47 = 156,173,139,991.21 : x
  2. Step 2: Convert to fraction form
    284,631,725,418.65/392,799,008,153.47 = 156,173,139,991.21/x
  3. Step 3: Cross multiply
    284,631,725,418.65x = 392,799,008,153.47 × 156,173,139,991.21
  4. Step 4: Simplify right side
    284,631,725,418.65x = 61,344,654,488,760,297,193,472
  5. Step 5: Solve for x
    x = 61,344,654,488,760,297,193,472/284,631,725,418.65
  6. Step 6: Final answer
    x = 215,522,898,575.45

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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.