Home / 323,877,385.60-485,928,052.80-312,679,945.60

Finding the Fourth Proportional to 323,877,385.60, 485,928,052.80 and 312,679,945.60

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Solution

The fourth proportional to 323,877,385.60, 485,928,052.80 and 312,679,945.60 is: 469,128,021.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,877,385.60 : 485,928,052.80 = 312,679,945.60 : x
  2. Step 2: Convert to fraction form
    323,877,385.60/485,928,052.80 = 312,679,945.60/x
  3. Step 3: Cross multiply
    323,877,385.60x = 485,928,052.80 × 312,679,945.60
  4. Step 4: Simplify right side
    323,877,385.60x = 151,939,957,115,017,952
  5. Step 5: Solve for x
    x = 151,939,957,115,017,952/323,877,385.60
  6. Step 6: Final answer
    x = 469,128,021.50

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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.