Home / 571,906,698.76-789,187,931.45-320,962,625.15

Finding the Fourth Proportional to 571,906,698.76, 789,187,931.45 and 320,962,625.15

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Solution

The fourth proportional to 571,906,698.76, 789,187,931.45 and 320,962,625.15 is: 442,904,114.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,906,698.76 : 789,187,931.45 = 320,962,625.15 : x
  2. Step 2: Convert to fraction form
    571,906,698.76/789,187,931.45 = 320,962,625.15/x
  3. Step 3: Cross multiply
    571,906,698.76x = 789,187,931.45 × 320,962,625.15
  4. Step 4: Simplify right side
    571,906,698.76x = 253,299,830,210,543,104
  5. Step 5: Solve for x
    x = 253,299,830,210,543,104/571,906,698.76
  6. Step 6: Final answer
    x = 442,904,114.88

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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.