Home / 1,259,155,143.74-1,887,737,532.75-628,563,566.21

Finding the Fourth Proportional to 1,259,155,143.74, 1,887,737,532.75 and 628,563,566.21

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Solution

The fourth proportional to 1,259,155,143.74, 1,887,737,532.75 and 628,563,566.21 is: 942,348,559.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,155,143.74 : 1,887,737,532.75 = 628,563,566.21 : x
  2. Step 2: Convert to fraction form
    1,259,155,143.74/1,887,737,532.75 = 628,563,566.21/x
  3. Step 3: Cross multiply
    1,259,155,143.74x = 1,887,737,532.75 × 628,563,566.21
  4. Step 4: Simplify right side
    1,259,155,143.74x = 1,186,563,035,660,914,432
  5. Step 5: Solve for x
    x = 1,186,563,035,660,914,432/1,259,155,143.74
  6. Step 6: Final answer
    x = 942,348,559.32

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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.