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Finding the Fourth Proportional to 21,283,256.70, 31,924,885.05 and 21,283,256.70

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Solution

The fourth proportional to 21,283,256.70, 31,924,885.05 and 21,283,256.70 is: 31,924,885.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,283,256.70 : 31,924,885.05 = 21,283,256.70 : x
  2. Step 2: Convert to fraction form
    21,283,256.70/31,924,885.05 = 21,283,256.70/x
  3. Step 3: Cross multiply
    21,283,256.70x = 31,924,885.05 × 21,283,256.70
  4. Step 4: Simplify right side
    21,283,256.70x = 679,465,523,637,142.38
  5. Step 5: Solve for x
    x = 679,465,523,637,142.38/21,283,256.70
  6. Step 6: Final answer
    x = 31,924,885.05

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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.