Home / 160,782,840.36-221,880,429.12-90,208,708.10

Finding the Fourth Proportional to 160,782,840.36, 221,880,429.12 and 90,208,708.10

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Solution

The fourth proportional to 160,782,840.36, 221,880,429.12 and 90,208,708.10 is: 124,488,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,782,840.36 : 221,880,429.12 = 90,208,708.10 : x
  2. Step 2: Convert to fraction form
    160,782,840.36/221,880,429.12 = 90,208,708.10/x
  3. Step 3: Cross multiply
    160,782,840.36x = 221,880,429.12 × 90,208,708.10
  4. Step 4: Simplify right side
    160,782,840.36x = 20,015,546,863,588,820
  5. Step 5: Solve for x
    x = 20,015,546,863,588,820/160,782,840.36
  6. Step 6: Final answer
    x = 124,488,078.57

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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.