Home / 160,782,832.85-221,880,418.76-90,208,700.60

Finding the Fourth Proportional to 160,782,832.85, 221,880,418.76 and 90,208,700.60

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Solution

The fourth proportional to 160,782,832.85, 221,880,418.76 and 90,208,700.60 is: 124,488,068.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,782,832.85 : 221,880,418.76 = 90,208,700.60 : x
  2. Step 2: Convert to fraction form
    160,782,832.85/221,880,418.76 = 90,208,700.60/x
  3. Step 3: Cross multiply
    160,782,832.85x = 221,880,418.76 × 90,208,700.60
  4. Step 4: Simplify right side
    160,782,832.85x = 20,015,544,264,039,580
  5. Step 5: Solve for x
    x = 20,015,544,264,039,580/160,782,832.85
  6. Step 6: Final answer
    x = 124,488,068.22

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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.