Home / 764,001,378.10-1,146,002,067.15-218,742,912.10

Finding the Fourth Proportional to 764,001,378.10, 1,146,002,067.15 and 218,742,912.10

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Solution

The fourth proportional to 764,001,378.10, 1,146,002,067.15 and 218,742,912.10 is: 328,114,368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,001,378.10 : 1,146,002,067.15 = 218,742,912.10 : x
  2. Step 2: Convert to fraction form
    764,001,378.10/1,146,002,067.15 = 218,742,912.10/x
  3. Step 3: Cross multiply
    764,001,378.10x = 1,146,002,067.15 × 218,742,912.10
  4. Step 4: Simplify right side
    764,001,378.10x = 250,679,829,441,010,752
  5. Step 5: Solve for x
    x = 250,679,829,441,010,752/764,001,378.10
  6. Step 6: Final answer
    x = 328,114,368.15

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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.