Home / 854,025,905.30-1,278,487,941.15-508,801,831.70

Finding the Fourth Proportional to 854,025,905.30, 1,278,487,941.15 and 508,801,831.70

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Solution

The fourth proportional to 854,025,905.30, 1,278,487,941.15 and 508,801,831.70 is: 761,682,991.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,025,905.30 : 1,278,487,941.15 = 508,801,831.70 : x
  2. Step 2: Convert to fraction form
    854,025,905.30/1,278,487,941.15 = 508,801,831.70/x
  3. Step 3: Cross multiply
    854,025,905.30x = 1,278,487,941.15 × 508,801,831.70
  4. Step 4: Simplify right side
    854,025,905.30x = 650,497,006,263,481,856
  5. Step 5: Solve for x
    x = 650,497,006,263,481,856/854,025,905.30
  6. Step 6: Final answer
    x = 761,682,991.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.