Home / 509,398,273.05-702,965,391.05-286,380,948.77

Finding the Fourth Proportional to 509,398,273.05, 702,965,391.05 and 286,380,948.77

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Solution

The fourth proportional to 509,398,273.05, 702,965,391.05 and 286,380,948.77 is: 395,203,333.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,398,273.05 : 702,965,391.05 = 286,380,948.77 : x
  2. Step 2: Convert to fraction form
    509,398,273.05/702,965,391.05 = 286,380,948.77/x
  3. Step 3: Cross multiply
    509,398,273.05x = 702,965,391.05 × 286,380,948.77
  4. Step 4: Simplify right side
    509,398,273.05x = 201,315,895,641,373,024
  5. Step 5: Solve for x
    x = 201,315,895,641,373,024/509,398,273.05
  6. Step 6: Final answer
    x = 395,203,333.60

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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.