Home / 149,768,878.31-206,677,085.96-83,689,919.55

Finding the Fourth Proportional to 149,768,878.31, 206,677,085.96 and 83,689,919.55

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Solution

The fourth proportional to 149,768,878.31, 206,677,085.96 and 83,689,919.55 is: 115,489,872.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,768,878.31 : 206,677,085.96 = 83,689,919.55 : x
  2. Step 2: Convert to fraction form
    149,768,878.31/206,677,085.96 = 83,689,919.55/x
  3. Step 3: Cross multiply
    149,768,878.31x = 206,677,085.96 × 83,689,919.55
  4. Step 4: Simplify right side
    149,768,878.31x = 17,296,788,697,030,060
  5. Step 5: Solve for x
    x = 17,296,788,697,030,060/149,768,878.31
  6. Step 6: Final answer
    x = 115,489,872.74

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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.