Home / 1,243,086,742.20-1,715,459,435.82-686,169,645.24

Finding the Fourth Proportional to 1,243,086,742.20, 1,715,459,435.82 and 686,169,645.24

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Solution

The fourth proportional to 1,243,086,742.20, 1,715,459,435.82 and 686,169,645.24 is: 946,913,962.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,086,742.20 : 1,715,459,435.82 = 686,169,645.24 : x
  2. Step 2: Convert to fraction form
    1,243,086,742.20/1,715,459,435.82 = 686,169,645.24/x
  3. Step 3: Cross multiply
    1,243,086,742.20x = 1,715,459,435.82 × 686,169,645.24
  4. Step 4: Simplify right side
    1,243,086,742.20x = 1,177,096,192,500,219,904
  5. Step 5: Solve for x
    x = 1,177,096,192,500,219,904/1,243,086,742.20
  6. Step 6: Final answer
    x = 946,913,962.27

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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.