Home / 208,021,748.24-286,607,786.76-137,331,459.44

Finding the Fourth Proportional to 208,021,748.24, 286,607,786.76 and 137,331,459.44

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Solution

The fourth proportional to 208,021,748.24, 286,607,786.76 and 137,331,459.44 is: 189,212,262.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,021,748.24 : 286,607,786.76 = 137,331,459.44 : x
  2. Step 2: Convert to fraction form
    208,021,748.24/286,607,786.76 = 137,331,459.44/x
  3. Step 3: Cross multiply
    208,021,748.24x = 286,607,786.76 × 137,331,459.44
  4. Step 4: Simplify right side
    208,021,748.24x = 39,360,265,642,619,104
  5. Step 5: Solve for x
    x = 39,360,265,642,619,104/208,021,748.24
  6. Step 6: Final answer
    x = 189,212,262.54

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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.