Home / 21,749,995.19-30,007,646.75-12,329,775.59

Finding the Fourth Proportional to 21,749,995.19, 30,007,646.75 and 12,329,775.59

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Solution

The fourth proportional to 21,749,995.19, 30,007,646.75 and 12,329,775.59 is: 17,010,925.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,749,995.19 : 30,007,646.75 = 12,329,775.59 : x
  2. Step 2: Convert to fraction form
    21,749,995.19/30,007,646.75 = 12,329,775.59/x
  3. Step 3: Cross multiply
    21,749,995.19x = 30,007,646.75 × 12,329,775.59
  4. Step 4: Simplify right side
    21,749,995.19x = 369,987,550,292,279.06
  5. Step 5: Solve for x
    x = 369,987,550,292,279.06/21,749,995.19
  6. Step 6: Final answer
    x = 17,010,925.61

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Double scale
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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.