Home / 836,941,348.40-1,256,187,737.02-422,709,069.31

Finding the Fourth Proportional to 836,941,348.40, 1,256,187,737.02 and 422,709,069.31

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Solution

The fourth proportional to 836,941,348.40, 1,256,187,737.02 and 422,709,069.31 is: 634,455,389.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,941,348.40 : 1,256,187,737.02 = 422,709,069.31 : x
  2. Step 2: Convert to fraction form
    836,941,348.40/1,256,187,737.02 = 422,709,069.31/x
  3. Step 3: Cross multiply
    836,941,348.40x = 1,256,187,737.02 × 422,709,069.31
  4. Step 4: Simplify right side
    836,941,348.40x = 531,001,949,188,078,272
  5. Step 5: Solve for x
    x = 531,001,949,188,078,272/836,941,348.40
  6. Step 6: Final answer
    x = 634,455,389.50

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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.