Home / 260,259,216.23-390,453,438.02-129,163,018.20

Finding the Fourth Proportional to 260,259,216.23, 390,453,438.02 and 129,163,018.20

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Solution

The fourth proportional to 260,259,216.23, 390,453,438.02 and 129,163,018.20 is: 193,776,594.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,259,216.23 : 390,453,438.02 = 129,163,018.20 : x
  2. Step 2: Convert to fraction form
    260,259,216.23/390,453,438.02 = 129,163,018.20/x
  3. Step 3: Cross multiply
    260,259,216.23x = 390,453,438.02 × 129,163,018.20
  4. Step 4: Simplify right side
    260,259,216.23x = 50,432,144,522,408,200
  5. Step 5: Solve for x
    x = 50,432,144,522,408,200/260,259,216.23
  6. Step 6: Final answer
    x = 193,776,594.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.