Home / 12,557,911.60-18,817,513.80-9,347,978.80

Finding the Fourth Proportional to 12,557,911.60, 18,817,513.80 and 9,347,978.80

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Solution

The fourth proportional to 12,557,911.60, 18,817,513.80 and 9,347,978.80 is: 14,007,561.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557,911.60 : 18,817,513.80 = 9,347,978.80 : x
  2. Step 2: Convert to fraction form
    12,557,911.60/18,817,513.80 = 9,347,978.80/x
  3. Step 3: Cross multiply
    12,557,911.60x = 18,817,513.80 × 9,347,978.80
  4. Step 4: Simplify right side
    12,557,911.60x = 175,905,720,071,107.47
  5. Step 5: Solve for x
    x = 175,905,720,071,107.47/12,557,911.60
  6. Step 6: Final answer
    x = 14,007,561.58

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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.