Home / 38,493,275.28-53,120,718.36-21,090,279.84

Finding the Fourth Proportional to 38,493,275.28, 53,120,718.36 and 21,090,279.84

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Solution

The fourth proportional to 38,493,275.28, 53,120,718.36 and 21,090,279.84 is: 29,104,585.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,493,275.28 : 53,120,718.36 = 21,090,279.84 : x
  2. Step 2: Convert to fraction form
    38,493,275.28/53,120,718.36 = 21,090,279.84/x
  3. Step 3: Cross multiply
    38,493,275.28x = 53,120,718.36 × 21,090,279.84
  4. Step 4: Simplify right side
    38,493,275.28x = 1,120,330,815,514,225.88
  5. Step 5: Solve for x
    x = 1,120,330,815,514,225.88/38,493,275.28
  6. Step 6: Final answer
    x = 29,104,585.34

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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.