Home / 764,285,001.40-1,144,726,890.90-628,236,105.40

Finding the Fourth Proportional to 764,285,001.40, 1,144,726,890.90 and 628,236,105.40

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Solution

The fourth proportional to 764,285,001.40, 1,144,726,890.90 and 628,236,105.40 is: 940,956,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,285,001.40 : 1,144,726,890.90 = 628,236,105.40 : x
  2. Step 2: Convert to fraction form
    764,285,001.40/1,144,726,890.90 = 628,236,105.40/x
  3. Step 3: Cross multiply
    764,285,001.40x = 1,144,726,890.90 × 628,236,105.40
  4. Step 4: Simplify right side
    764,285,001.40x = 719,158,763,685,666,688
  5. Step 5: Solve for x
    x = 719,158,763,685,666,688/764,285,001.40
  6. Step 6: Final answer
    x = 940,956,269.41

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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.