Home / 509,353,999.61-702,911,469.96-286,333,728.73

Finding the Fourth Proportional to 509,353,999.61, 702,911,469.96 and 286,333,728.73

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Solution

The fourth proportional to 509,353,999.61, 702,911,469.96 and 286,333,728.73 is: 395,142,204.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,353,999.61 : 702,911,469.96 = 286,333,728.73 : x
  2. Step 2: Convert to fraction form
    509,353,999.61/702,911,469.96 = 286,333,728.73/x
  3. Step 3: Cross multiply
    509,353,999.61x = 702,911,469.96 × 286,333,728.73
  4. Step 4: Simplify right side
    509,353,999.61x = 201,267,262,158,974,944
  5. Step 5: Solve for x
    x = 201,267,262,158,974,944/509,353,999.61
  6. Step 6: Final answer
    x = 395,142,204.27

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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.