Home / 876,708,752.46-1,209,843,250.35-485,559,778.38

Finding the Fourth Proportional to 876,708,752.46, 1,209,843,250.35 and 485,559,778.38

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Solution

The fourth proportional to 876,708,752.46, 1,209,843,250.35 and 485,559,778.38 is: 670,064,281.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,708,752.46 : 1,209,843,250.35 = 485,559,778.38 : x
  2. Step 2: Convert to fraction form
    876,708,752.46/1,209,843,250.35 = 485,559,778.38/x
  3. Step 3: Cross multiply
    876,708,752.46x = 1,209,843,250.35 × 485,559,778.38
  4. Step 4: Simplify right side
    876,708,752.46x = 587,451,220,514,484,864
  5. Step 5: Solve for x
    x = 587,451,220,514,484,864/876,708,752.46
  6. Step 6: Final answer
    x = 670,064,281.74

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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.