Home / 15,488,319.72-21,378,386.52-10,331,668.56

Finding the Fourth Proportional to 15,488,319.72, 21,378,386.52 and 10,331,668.56

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Solution

The fourth proportional to 15,488,319.72, 21,378,386.52 and 10,331,668.56 is: 14,260,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,488,319.72 : 21,378,386.52 = 10,331,668.56 : x
  2. Step 2: Convert to fraction form
    15,488,319.72/21,378,386.52 = 10,331,668.56/x
  3. Step 3: Cross multiply
    15,488,319.72x = 21,378,386.52 × 10,331,668.56
  4. Step 4: Simplify right side
    15,488,319.72x = 220,874,403,872,211.81
  5. Step 5: Solve for x
    x = 220,874,403,872,211.81/15,488,319.72
  6. Step 6: Final answer
    x = 14,260,707.93

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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.