Home / 407,792,459,460.96-611,520,393,870.66-139,203,073,506.74

Finding the Fourth Proportional to 407,792,459,460.96, 611,520,393,870.66 and 139,203,073,506.74

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Solution

The fourth proportional to 407,792,459,460.96, 611,520,393,870.66 and 139,203,073,506.74 is: 208,747,161,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,792,459,460.96 : 611,520,393,870.66 = 139,203,073,506.74 : x
  2. Step 2: Convert to fraction form
    407,792,459,460.96/611,520,393,870.66 = 139,203,073,506.74/x
  3. Step 3: Cross multiply
    407,792,459,460.96x = 611,520,393,870.66 × 139,203,073,506.74
  4. Step 4: Simplify right side
    407,792,459,460.96x = 85,125,518,338,848,079,216,640
  5. Step 5: Solve for x
    x = 85,125,518,338,848,079,216,640/407,792,459,460.96
  6. Step 6: Final answer
    x = 208,747,161,365.79

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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.