Home / 21,094,486.50-31,799,837.15-19,688,321.58

Finding the Fourth Proportional to 21,094,486.50, 31,799,837.15 and 19,688,321.58

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Solution

The fourth proportional to 21,094,486.50, 31,799,837.15 and 19,688,321.58 is: 29,680,050.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,094,486.50 : 31,799,837.15 = 19,688,321.58 : x
  2. Step 2: Convert to fraction form
    21,094,486.50/31,799,837.15 = 19,688,321.58/x
  3. Step 3: Cross multiply
    21,094,486.50x = 31,799,837.15 × 19,688,321.58
  4. Step 4: Simplify right side
    21,094,486.50x = 626,085,419,902,389
  5. Step 5: Solve for x
    x = 626,085,419,902,389/21,094,486.50
  6. Step 6: Final answer
    x = 29,680,050.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.