Home / 387,239,625.60-580,859,438.40-299,563,670.40

Finding the Fourth Proportional to 387,239,625.60, 580,859,438.40 and 299,563,670.40

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Solution

The fourth proportional to 387,239,625.60, 580,859,438.40 and 299,563,670.40 is: 449,345,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,239,625.60 : 580,859,438.40 = 299,563,670.40 : x
  2. Step 2: Convert to fraction form
    387,239,625.60/580,859,438.40 = 299,563,670.40/x
  3. Step 3: Cross multiply
    387,239,625.60x = 580,859,438.40 × 299,563,670.40
  4. Step 4: Simplify right side
    387,239,625.60x = 174,004,385,353,586,688
  5. Step 5: Solve for x
    x = 174,004,385,353,586,688/387,239,625.60
  6. Step 6: Final answer
    x = 449,345,505.60

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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.