Home / 521,836,690.50-720,116,283.96-286,885,640.25

Finding the Fourth Proportional to 521,836,690.50, 720,116,283.96 and 286,885,640.25

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Solution

The fourth proportional to 521,836,690.50, 720,116,283.96 and 286,885,640.25 is: 395,892,096.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,836,690.50 : 720,116,283.96 = 286,885,640.25 : x
  2. Step 2: Convert to fraction form
    521,836,690.50/720,116,283.96 = 286,885,640.25/x
  3. Step 3: Cross multiply
    521,836,690.50x = 720,116,283.96 × 286,885,640.25
  4. Step 4: Simplify right side
    521,836,690.50x = 206,591,021,178,315,424
  5. Step 5: Solve for x
    x = 206,591,021,178,315,424/521,836,690.50
  6. Step 6: Final answer
    x = 395,892,096.01

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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.