Home / 12,493,779.09-18,706,860.05-8,165,045.13

Finding the Fourth Proportional to 12,493,779.09, 18,706,860.05 and 8,165,045.13

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Solution

The fourth proportional to 12,493,779.09, 18,706,860.05 and 8,165,045.13 is: 12,225,472.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493,779.09 : 18,706,860.05 = 8,165,045.13 : x
  2. Step 2: Convert to fraction form
    12,493,779.09/18,706,860.05 = 8,165,045.13/x
  3. Step 3: Cross multiply
    12,493,779.09x = 18,706,860.05 × 8,165,045.13
  4. Step 4: Simplify right side
    12,493,779.09x = 152,742,356,508,018.84
  5. Step 5: Solve for x
    x = 152,742,356,508,018.84/12,493,779.09
  6. Step 6: Final answer
    x = 12,225,472.81

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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.