Home / 734,038,641.50-1,012,981,605.74-399,513,305.60

Finding the Fourth Proportional to 734,038,641.50, 1,012,981,605.74 and 399,513,305.60

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Solution

The fourth proportional to 734,038,641.50, 1,012,981,605.74 and 399,513,305.60 is: 551,332,868.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,038,641.50 : 1,012,981,605.74 = 399,513,305.60 : x
  2. Step 2: Convert to fraction form
    734,038,641.50/1,012,981,605.74 = 399,513,305.60/x
  3. Step 3: Cross multiply
    734,038,641.50x = 1,012,981,605.74 × 399,513,305.60
  4. Step 4: Simplify right side
    734,038,641.50x = 404,699,629,821,183,360
  5. Step 5: Solve for x
    x = 404,699,629,821,183,360/734,038,641.50
  6. Step 6: Final answer
    x = 551,332,868.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.