Home / 13,579,265.24-18,739,878.69-7,779,167.90

Finding the Fourth Proportional to 13,579,265.24, 18,739,878.69 and 7,779,167.90

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Solution

The fourth proportional to 13,579,265.24, 18,739,878.69 and 7,779,167.90 is: 10,735,533.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579,265.24 : 18,739,878.69 = 7,779,167.90 : x
  2. Step 2: Convert to fraction form
    13,579,265.24/18,739,878.69 = 7,779,167.90/x
  3. Step 3: Cross multiply
    13,579,265.24x = 18,739,878.69 × 7,779,167.90
  4. Step 4: Simplify right side
    13,579,265.24x = 145,780,662,755,142.06
  5. Step 5: Solve for x
    x = 145,780,662,755,142.06/13,579,265.24
  6. Step 6: Final answer
    x = 10,735,533.93

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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.