Home / 650,974,977.47-898,345,818.83-357,638,441.15

Finding the Fourth Proportional to 650,974,977.47, 898,345,818.83 and 357,638,441.15

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Solution

The fourth proportional to 650,974,977.47, 898,345,818.83 and 357,638,441.15 is: 493,541,241.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,974,977.47 : 898,345,818.83 = 357,638,441.15 : x
  2. Step 2: Convert to fraction form
    650,974,977.47/898,345,818.83 = 357,638,441.15/x
  3. Step 3: Cross multiply
    650,974,977.47x = 898,345,818.83 × 357,638,441.15
  4. Step 4: Simplify right side
    650,974,977.47x = 321,282,998,260,439,168
  5. Step 5: Solve for x
    x = 321,282,998,260,439,168/650,974,977.47
  6. Step 6: Final answer
    x = 493,541,241.03

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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.