Home / 13,608,521.69-18,779,794.34-7,413,613.56

Finding the Fourth Proportional to 13,608,521.69, 18,779,794.34 and 7,413,613.56

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Solution

The fourth proportional to 13,608,521.69, 18,779,794.34 and 7,413,613.56 is: 10,230,805.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,521.69 : 18,779,794.34 = 7,413,613.56 : x
  2. Step 2: Convert to fraction form
    13,608,521.69/18,779,794.34 = 7,413,613.56/x
  3. Step 3: Cross multiply
    13,608,521.69x = 18,779,794.34 × 7,413,613.56
  4. Step 4: Simplify right side
    13,608,521.69x = 139,226,137,935,967.19
  5. Step 5: Solve for x
    x = 139,226,137,935,967.19/13,608,521.69
  6. Step 6: Final answer
    x = 10,230,805.46

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1.5x scale

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.