Home / 21,492,841.40-32,239,262.10-21,293,775.80

Finding the Fourth Proportional to 21,492,841.40, 32,239,262.10 and 21,293,775.80

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Solution

The fourth proportional to 21,492,841.40, 32,239,262.10 and 21,293,775.80 is: 31,940,663.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492,841.40 : 32,239,262.10 = 21,293,775.80 : x
  2. Step 2: Convert to fraction form
    21,492,841.40/32,239,262.10 = 21,293,775.80/x
  3. Step 3: Cross multiply
    21,492,841.40x = 32,239,262.10 × 21,293,775.80
  4. Step 4: Simplify right side
    21,492,841.40x = 686,495,619,114,837.25
  5. Step 5: Solve for x
    x = 686,495,619,114,837.25/21,492,841.40
  6. Step 6: Final answer
    x = 31,940,663.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.