Home / 12,551,281.05-18,837,009.09-6,487,788.90

Finding the Fourth Proportional to 12,551,281.05, 18,837,009.09 and 6,487,788.90

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Solution

The fourth proportional to 12,551,281.05, 18,837,009.09 and 6,487,788.90 is: 9,736,897.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551,281.05 : 18,837,009.09 = 6,487,788.90 : x
  2. Step 2: Convert to fraction form
    12,551,281.05/18,837,009.09 = 6,487,788.90/x
  3. Step 3: Cross multiply
    12,551,281.05x = 18,837,009.09 × 6,487,788.90
  4. Step 4: Simplify right side
    12,551,281.05x = 122,210,538,483,301.11
  5. Step 5: Solve for x
    x = 122,210,538,483,301.11/12,551,281.05
  6. Step 6: Final answer
    x = 9,736,897.61

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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.