Home / 485,532,164.84-670,086,312.57-297,485,254.58

Finding the Fourth Proportional to 485,532,164.84, 670,086,312.57 and 297,485,254.58

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Solution

The fourth proportional to 485,532,164.84, 670,086,312.57 and 297,485,254.58 is: 410,561,465.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,532,164.84 : 670,086,312.57 = 297,485,254.58 : x
  2. Step 2: Convert to fraction form
    485,532,164.84/670,086,312.57 = 297,485,254.58/x
  3. Step 3: Cross multiply
    485,532,164.84x = 670,086,312.57 × 297,485,254.58
  4. Step 4: Simplify right side
    485,532,164.84x = 199,340,797,282,109,472
  5. Step 5: Solve for x
    x = 199,340,797,282,109,472/485,532,164.84
  6. Step 6: Final answer
    x = 410,561,465.79

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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.