Home / 638,298,966.08-880,892,047.60-352,189,093.84

Finding the Fourth Proportional to 638,298,966.08, 880,892,047.60 and 352,189,093.84

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Solution

The fourth proportional to 638,298,966.08, 880,892,047.60 and 352,189,093.84 is: 486,042,729.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,298,966.08 : 880,892,047.60 = 352,189,093.84 : x
  2. Step 2: Convert to fraction form
    638,298,966.08/880,892,047.60 = 352,189,093.84/x
  3. Step 3: Cross multiply
    638,298,966.08x = 880,892,047.60 × 352,189,093.84
  4. Step 4: Simplify right side
    638,298,966.08x = 310,240,572,015,106,112
  5. Step 5: Solve for x
    x = 310,240,572,015,106,112/638,298,966.08
  6. Step 6: Final answer
    x = 486,042,729.98

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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.