Home / 853,928,955.36-1,280,642,156.46-387,320,433.12

Finding the Fourth Proportional to 853,928,955.36, 1,280,642,156.46 and 387,320,433.12

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Solution

The fourth proportional to 853,928,955.36, 1,280,642,156.46 and 387,320,433.12 is: 580,866,677.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,928,955.36 : 1,280,642,156.46 = 387,320,433.12 : x
  2. Step 2: Convert to fraction form
    853,928,955.36/1,280,642,156.46 = 387,320,433.12/x
  3. Step 3: Cross multiply
    853,928,955.36x = 1,280,642,156.46 × 387,320,433.12
  4. Step 4: Simplify right side
    853,928,955.36x = 496,018,874,711,818,048
  5. Step 5: Solve for x
    x = 496,018,874,711,818,048/853,928,955.36
  6. Step 6: Final answer
    x = 580,866,677.02

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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.