Home / 12,468,055.60-18,713,893.20-7,685,086.60

Finding the Fourth Proportional to 12,468,055.60, 18,713,893.20 and 7,685,086.60

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Solution

The fourth proportional to 12,468,055.60, 18,713,893.20 and 7,685,086.60 is: 11,534,909.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468,055.60 : 18,713,893.20 = 7,685,086.60 : x
  2. Step 2: Convert to fraction form
    12,468,055.60/18,713,893.20 = 7,685,086.60/x
  3. Step 3: Cross multiply
    12,468,055.60x = 18,713,893.20 × 7,685,086.60
  4. Step 4: Simplify right side
    12,468,055.60x = 143,817,889,865,151.09
  5. Step 5: Solve for x
    x = 143,817,889,865,151.09/12,468,055.60
  6. Step 6: Final answer
    x = 11,534,909.25

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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.