Home / 12,913,818.24-17,819,508.96-7,406,907.84

Finding the Fourth Proportional to 12,913,818.24, 17,819,508.96 and 7,406,907.84

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Solution

The fourth proportional to 12,913,818.24, 17,819,508.96 and 7,406,907.84 is: 10,220,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,818.24 : 17,819,508.96 = 7,406,907.84 : x
  2. Step 2: Convert to fraction form
    12,913,818.24/17,819,508.96 = 7,406,907.84/x
  3. Step 3: Cross multiply
    12,913,818.24x = 17,819,508.96 × 7,406,907.84
  4. Step 4: Simplify right side
    12,913,818.24x = 131,987,460,620,774.25
  5. Step 5: Solve for x
    x = 131,987,460,620,774.25/12,913,818.24
  6. Step 6: Final answer
    x = 10,220,637.94

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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.