Home / 30,269,473.16-41,700,897.78-21,085,498.76

Finding the Fourth Proportional to 30,269,473.16, 41,700,897.78 and 21,085,498.76

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Solution

The fourth proportional to 30,269,473.16, 41,700,897.78 and 21,085,498.76 is: 29,048,547.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,269,473.16 : 41,700,897.78 = 21,085,498.76 : x
  2. Step 2: Convert to fraction form
    30,269,473.16/41,700,897.78 = 21,085,498.76/x
  3. Step 3: Cross multiply
    30,269,473.16x = 41,700,897.78 × 21,085,498.76
  4. Step 4: Simplify right side
    30,269,473.16x = 879,284,228,431,076.88
  5. Step 5: Solve for x
    x = 879,284,228,431,076.88/30,269,473.16
  6. Step 6: Final answer
    x = 29,048,547.48

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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.