Home / 160,782,811.47-221,880,389.31-90,208,679.22

Finding the Fourth Proportional to 160,782,811.47, 221,880,389.31 and 90,208,679.22

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Solution

The fourth proportional to 160,782,811.47, 221,880,389.31 and 90,208,679.22 is: 124,488,038.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,782,811.47 : 221,880,389.31 = 90,208,679.22 : x
  2. Step 2: Convert to fraction form
    160,782,811.47/221,880,389.31 = 90,208,679.22/x
  3. Step 3: Cross multiply
    160,782,811.47x = 221,880,389.31 × 90,208,679.22
  4. Step 4: Simplify right side
    160,782,811.47x = 20,015,536,864,474,508
  5. Step 5: Solve for x
    x = 20,015,536,864,474,508/160,782,811.47
  6. Step 6: Final answer
    x = 124,488,038.75

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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.