Home / 143,122,330.20-197,503,427.34-87,460,823.64

Finding the Fourth Proportional to 143,122,330.20, 197,503,427.34 and 87,460,823.64

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Solution

The fourth proportional to 143,122,330.20, 197,503,427.34 and 87,460,823.64 is: 120,692,643.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,122,330.20 : 197,503,427.34 = 87,460,823.64 : x
  2. Step 2: Convert to fraction form
    143,122,330.20/197,503,427.34 = 87,460,823.64/x
  3. Step 3: Cross multiply
    143,122,330.20x = 197,503,427.34 × 87,460,823.64
  4. Step 4: Simplify right side
    143,122,330.20x = 17,273,812,426,879,294
  5. Step 5: Solve for x
    x = 17,273,812,426,879,294/143,122,330.20
  6. Step 6: Final answer
    x = 120,692,643.86

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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.