Home / 12,890,699.60-19,319,460.60-9,883,979.60

Finding the Fourth Proportional to 12,890,699.60, 19,319,460.60 and 9,883,979.60

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Solution

The fourth proportional to 12,890,699.60, 19,319,460.60 and 9,883,979.60 is: 14,813,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890,699.60 : 19,319,460.60 = 9,883,979.60 : x
  2. Step 2: Convert to fraction form
    12,890,699.60/19,319,460.60 = 9,883,979.60/x
  3. Step 3: Cross multiply
    12,890,699.60x = 19,319,460.60 × 9,883,979.60
  4. Step 4: Simplify right side
    12,890,699.60x = 190,953,154,453,403.78
  5. Step 5: Solve for x
    x = 190,953,154,453,403.78/12,890,699.60
  6. Step 6: Final answer
    x = 14,813,249.89

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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.