Home / 13,579,158.22-18,739,731.09-7,779,060.94

Finding the Fourth Proportional to 13,579,158.22, 18,739,731.09 and 7,779,060.94

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Solution

The fourth proportional to 13,579,158.22, 18,739,731.09 and 7,779,060.94 is: 10,735,386.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,158.22 : 18,739,731.09 = 7,779,060.94 : x
  2. Step 2: Convert to fraction form
    13,579,158.22/18,739,731.09 = 7,779,060.94/x
  3. Step 3: Cross multiply
    13,579,158.22x = 18,739,731.09 × 7,779,060.94
  4. Step 4: Simplify right side
    13,579,158.22x = 145,777,510,148,322.62
  5. Step 5: Solve for x
    x = 145,777,510,148,322.62/13,579,158.22
  6. Step 6: Final answer
    x = 10,735,386.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.