Home / 15,608,977,689.42-21,539,831,882.82-8,834,650,822.12

Finding the Fourth Proportional to 15,608,977,689.42, 21,539,831,882.82 and 8,834,650,822.12

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Solution

The fourth proportional to 15,608,977,689.42, 21,539,831,882.82 and 8,834,650,822.12 is: 12,191,502,687.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608,977,689.42 : 21,539,831,882.82 = 8,834,650,822.12 : x
  2. Step 2: Convert to fraction form
    15,608,977,689.42/21,539,831,882.82 = 8,834,650,822.12/x
  3. Step 3: Cross multiply
    15,608,977,689.42x = 21,539,831,882.82 × 8,834,650,822.12
  4. Step 4: Simplify right side
    15,608,977,689.42x = 190,296,893,451,932,270,592
  5. Step 5: Solve for x
    x = 190,296,893,451,932,270,592/15,608,977,689.42
  6. Step 6: Final answer
    x = 12,191,502,687.64

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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.