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Finding the Fourth Proportional to 21,143,725.30, 29,537,442.50 and 21,143,725.30

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Solution

The fourth proportional to 21,143,725.30, 29,537,442.50 and 21,143,725.30 is: 29,537,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143,725.30 : 29,537,442.50 = 21,143,725.30 : x
  2. Step 2: Convert to fraction form
    21,143,725.30/29,537,442.50 = 21,143,725.30/x
  3. Step 3: Cross multiply
    21,143,725.30x = 29,537,442.50 × 21,143,725.30
  4. Step 4: Simplify right side
    21,143,725.30x = 624,531,570,284,545.25
  5. Step 5: Solve for x
    x = 624,531,570,284,545.25/21,143,725.30
  6. Step 6: Final answer
    x = 29,537,442.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.