Home / 642,166,249.29-886,262,937.81-359,984,903.76

Finding the Fourth Proportional to 642,166,249.29, 886,262,937.81 and 359,984,903.76

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Solution

The fourth proportional to 642,166,249.29, 886,262,937.81 and 359,984,903.76 is: 496,820,377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,166,249.29 : 886,262,937.81 = 359,984,903.76 : x
  2. Step 2: Convert to fraction form
    642,166,249.29/886,262,937.81 = 359,984,903.76/x
  3. Step 3: Cross multiply
    642,166,249.29x = 886,262,937.81 × 359,984,903.76
  4. Step 4: Simplify right side
    642,166,249.29x = 319,041,278,373,587,712
  5. Step 5: Solve for x
    x = 319,041,278,373,587,712/642,166,249.29
  6. Step 6: Final answer
    x = 496,820,377.47

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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.