Home / 508,825,708.11-763,021,647.03-193,637,953.23

Finding the Fourth Proportional to 508,825,708.11, 763,021,647.03 and 193,637,953.23

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Solution

The fourth proportional to 508,825,708.11, 763,021,647.03 and 193,637,953.23 is: 290,374,380.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,825,708.11 : 763,021,647.03 = 193,637,953.23 : x
  2. Step 2: Convert to fraction form
    508,825,708.11/763,021,647.03 = 193,637,953.23/x
  3. Step 3: Cross multiply
    508,825,708.11x = 763,021,647.03 × 193,637,953.23
  4. Step 4: Simplify right side
    508,825,708.11x = 147,749,950,001,072,704
  5. Step 5: Solve for x
    x = 147,749,950,001,072,704/508,825,708.11
  6. Step 6: Final answer
    x = 290,374,380.94

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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.