Home / 1,138,831,786.08-1,707,806,043.02-391,705,497.84

Finding the Fourth Proportional to 1,138,831,786.08, 1,707,806,043.02 and 391,705,497.84

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Solution

The fourth proportional to 1,138,831,786.08, 1,707,806,043.02 and 391,705,497.84 is: 587,406,344.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,831,786.08 : 1,707,806,043.02 = 391,705,497.84 : x
  2. Step 2: Convert to fraction form
    1,138,831,786.08/1,707,806,043.02 = 391,705,497.84/x
  3. Step 3: Cross multiply
    1,138,831,786.08x = 1,707,806,043.02 × 391,705,497.84
  4. Step 4: Simplify right side
    1,138,831,786.08x = 668,957,016,302,693,120
  5. Step 5: Solve for x
    x = 668,957,016,302,693,120/1,138,831,786.08
  6. Step 6: Final answer
    x = 587,406,344.36

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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.