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Finding the Fourth Proportional to 19,327,647.60, 28,994,970.60 and 9,718,844.40

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Solution

The fourth proportional to 19,327,647.60, 28,994,970.60 and 9,718,844.40 is: 14,580,026.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,327,647.60 : 28,994,970.60 = 9,718,844.40 : x
  2. Step 2: Convert to fraction form
    19,327,647.60/28,994,970.60 = 9,718,844.40/x
  3. Step 3: Cross multiply
    19,327,647.60x = 28,994,970.60 × 9,718,844.40
  4. Step 4: Simplify right side
    19,327,647.60x = 281,797,607,643,974.69
  5. Step 5: Solve for x
    x = 281,797,607,643,974.69/19,327,647.60
  6. Step 6: Final answer
    x = 14,580,026.16

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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.