Home / 870,129,396.20-1,303,280,906.70-755,338,140.20

Finding the Fourth Proportional to 870,129,396.20, 1,303,280,906.70 and 755,338,140.20

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Solution

The fourth proportional to 870,129,396.20, 1,303,280,906.70 and 755,338,140.20 is: 1,131,346,418.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,129,396.20 : 1,303,280,906.70 = 755,338,140.20 : x
  2. Step 2: Convert to fraction form
    870,129,396.20/1,303,280,906.70 = 755,338,140.20/x
  3. Step 3: Cross multiply
    870,129,396.20x = 1,303,280,906.70 × 755,338,140.20
  4. Step 4: Simplify right side
    870,129,396.20x = 984,417,776,224,947,840
  5. Step 5: Solve for x
    x = 984,417,776,224,947,840/870,129,396.20
  6. Step 6: Final answer
    x = 1,131,346,418.73

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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.