Home / 486,570,856.40-729,795,416.34-159,018,967.52

Finding the Fourth Proportional to 486,570,856.40, 729,795,416.34 and 159,018,967.52

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Solution

The fourth proportional to 486,570,856.40, 729,795,416.34 and 159,018,967.52 is: 238,508,558.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,570,856.40 : 729,795,416.34 = 159,018,967.52 : x
  2. Step 2: Convert to fraction form
    486,570,856.40/729,795,416.34 = 159,018,967.52/x
  3. Step 3: Cross multiply
    486,570,856.40x = 729,795,416.34 × 159,018,967.52
  4. Step 4: Simplify right side
    486,570,856.40x = 116,051,313,607,215,344
  5. Step 5: Solve for x
    x = 116,051,313,607,215,344/486,570,856.40
  6. Step 6: Final answer
    x = 238,508,558.58

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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.