Home / 486,749,419.29-671,747,154.55-274,982,802.21

Finding the Fourth Proportional to 486,749,419.29, 671,747,154.55 and 274,982,802.21

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Solution

The fourth proportional to 486,749,419.29, 671,747,154.55 and 274,982,802.21 is: 379,494,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,749,419.29 : 671,747,154.55 = 274,982,802.21 : x
  2. Step 2: Convert to fraction form
    486,749,419.29/671,747,154.55 = 274,982,802.21/x
  3. Step 3: Cross multiply
    486,749,419.29x = 671,747,154.55 × 274,982,802.21
  4. Step 4: Simplify right side
    486,749,419.29x = 184,718,914,934,065,472
  5. Step 5: Solve for x
    x = 184,718,914,934,065,472/486,749,419.29
  6. Step 6: Final answer
    x = 379,494,885.08

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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.