Home / 13,815,676.80-19,065,653.28-7,620,585.12

Finding the Fourth Proportional to 13,815,676.80, 19,065,653.28 and 7,620,585.12

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Solution

The fourth proportional to 13,815,676.80, 19,065,653.28 and 7,620,585.12 is: 10,516,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815,676.80 : 19,065,653.28 = 7,620,585.12 : x
  2. Step 2: Convert to fraction form
    13,815,676.80/19,065,653.28 = 7,620,585.12/x
  3. Step 3: Cross multiply
    13,815,676.80x = 19,065,653.28 × 7,620,585.12
  4. Step 4: Simplify right side
    13,815,676.80x = 145,291,433,688,647.22
  5. Step 5: Solve for x
    x = 145,291,433,688,647.22/13,815,676.80
  6. Step 6: Final answer
    x = 10,516,418.11

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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.