Home / 266,922,830.90-400,384,246.35-209,591,938.10

Finding the Fourth Proportional to 266,922,830.90, 400,384,246.35 and 209,591,938.10

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Solution

The fourth proportional to 266,922,830.90, 400,384,246.35 and 209,591,938.10 is: 314,387,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,922,830.90 : 400,384,246.35 = 209,591,938.10 : x
  2. Step 2: Convert to fraction form
    266,922,830.90/400,384,246.35 = 209,591,938.10/x
  3. Step 3: Cross multiply
    266,922,830.90x = 400,384,246.35 × 209,591,938.10
  4. Step 4: Simplify right side
    266,922,830.90x = 83,917,310,177,204,352
  5. Step 5: Solve for x
    x = 83,917,310,177,204,352/266,922,830.90
  6. Step 6: Final answer
    x = 314,387,907.15

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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.