Home / 982,051,030.62-1,357,003,172.07-699,302,588.72

Finding the Fourth Proportional to 982,051,030.62, 1,357,003,172.07 and 699,302,588.72

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Solution

The fourth proportional to 982,051,030.62, 1,357,003,172.07 and 699,302,588.72 is: 966,299,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,051,030.62 : 1,357,003,172.07 = 699,302,588.72 : x
  2. Step 2: Convert to fraction form
    982,051,030.62/1,357,003,172.07 = 699,302,588.72/x
  3. Step 3: Cross multiply
    982,051,030.62x = 1,357,003,172.07 × 699,302,588.72
  4. Step 4: Simplify right side
    982,051,030.62x = 948,955,831,123,017,600
  5. Step 5: Solve for x
    x = 948,955,831,123,017,600/982,051,030.62
  6. Step 6: Final answer
    x = 966,299,918.78

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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.