Home / 68,966,705.68-103,446,308.76-21,097,649.68

Finding the Fourth Proportional to 68,966,705.68, 103,446,308.76 and 21,097,649.68

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Solution

The fourth proportional to 68,966,705.68, 103,446,308.76 and 21,097,649.68 is: 31,645,327.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,966,705.68 : 103,446,308.76 = 21,097,649.68 : x
  2. Step 2: Convert to fraction form
    68,966,705.68/103,446,308.76 = 21,097,649.68/x
  3. Step 3: Cross multiply
    68,966,705.68x = 103,446,308.76 × 21,097,649.68
  4. Step 4: Simplify right side
    68,966,705.68x = 2,182,473,982,907,595.25
  5. Step 5: Solve for x
    x = 2,182,473,982,907,595.25/68,966,705.68
  6. Step 6: Final answer
    x = 31,645,327.43

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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.