Home / 288,012,162.60-432,018,243.90-72,601,410.60

Finding the Fourth Proportional to 288,012,162.60, 432,018,243.90 and 72,601,410.60

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Solution

The fourth proportional to 288,012,162.60, 432,018,243.90 and 72,601,410.60 is: 108,902,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,012,162.60 : 432,018,243.90 = 72,601,410.60 : x
  2. Step 2: Convert to fraction form
    288,012,162.60/432,018,243.90 = 72,601,410.60/x
  3. Step 3: Cross multiply
    288,012,162.60x = 432,018,243.90 × 72,601,410.60
  4. Step 4: Simplify right side
    288,012,162.60x = 31,365,133,912,074,840
  5. Step 5: Solve for x
    x = 31,365,133,912,074,840/288,012,162.60
  6. Step 6: Final answer
    x = 108,902,115.90

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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.