Home / 693,743,987.17-957,427,239.68-380,538,735.81

Finding the Fourth Proportional to 693,743,987.17, 957,427,239.68 and 380,538,735.81

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Solution

The fourth proportional to 693,743,987.17, 957,427,239.68 and 380,538,735.81 is: 525,176,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,743,987.17 : 957,427,239.68 = 380,538,735.81 : x
  2. Step 2: Convert to fraction form
    693,743,987.17/957,427,239.68 = 380,538,735.81/x
  3. Step 3: Cross multiply
    693,743,987.17x = 957,427,239.68 × 380,538,735.81
  4. Step 4: Simplify right side
    693,743,987.17x = 364,338,151,417,885,056
  5. Step 5: Solve for x
    x = 364,338,151,417,885,056/693,743,987.17
  6. Step 6: Final answer
    x = 525,176,661.93

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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.