Home / 290,903,648.56-401,455,512.95-158,753,157.10

Finding the Fourth Proportional to 290,903,648.56, 401,455,512.95 and 158,753,157.10

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Solution

The fourth proportional to 290,903,648.56, 401,455,512.95 and 158,753,157.10 is: 219,083,983.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,903,648.56 : 401,455,512.95 = 158,753,157.10 : x
  2. Step 2: Convert to fraction form
    290,903,648.56/401,455,512.95 = 158,753,157.10/x
  3. Step 3: Cross multiply
    290,903,648.56x = 401,455,512.95 × 158,753,157.10
  4. Step 4: Simplify right side
    290,903,648.56x = 63,732,330,116,012,432
  5. Step 5: Solve for x
    x = 63,732,330,116,012,432/290,903,648.56
  6. Step 6: Final answer
    x = 219,083,983.41

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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.