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Finding the Third Proportional to 10,813,473 and 15,117,961.50

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Solution

The third proportional to 10,813,473 and 15,117,961.50 is: 21,135,925.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,813,473 : 15,117,961.50 = 15,117,961.50 : x
  2. Step 2: Convert to fraction form
    10,813,473/15,117,961.50 = 15,117,961.50/x
  3. Step 3: Cross multiply
    10,813,473x = 15,117,961.50 × 15,117,961.50
  4. Step 4: Simplify right side
    10,813,473x = 228,552,759,915,482.25
  5. Step 5: Solve for x
    x = 228,552,759,915,482.25/10,813,473
  6. Step 6: Final answer
    x = 21,135,925.52

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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.