Home / 1,238,773,722.40-1,858,160,583.60-870,724,257.85

Finding the Fourth Proportional to 1,238,773,722.40, 1,858,160,583.60 and 870,724,257.85

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Solution

The fourth proportional to 1,238,773,722.40, 1,858,160,583.60 and 870,724,257.85 is: 1,306,086,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,773,722.40 : 1,858,160,583.60 = 870,724,257.85 : x
  2. Step 2: Convert to fraction form
    1,238,773,722.40/1,858,160,583.60 = 870,724,257.85/x
  3. Step 3: Cross multiply
    1,238,773,722.40x = 1,858,160,583.60 × 870,724,257.85
  4. Step 4: Simplify right side
    1,238,773,722.40x = 1,617,945,495,121,232,896
  5. Step 5: Solve for x
    x = 1,617,945,495,121,232,896/1,238,773,722.40
  6. Step 6: Final answer
    x = 1,306,086,386.78

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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.