Home / 120,610,935.18-180,459,856.62-71,453,172.21

Finding the Fourth Proportional to 120,610,935.18, 180,459,856.62 and 71,453,172.21

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Solution

The fourth proportional to 120,610,935.18, 180,459,856.62 and 71,453,172.21 is: 106,909,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,610,935.18 : 180,459,856.62 = 71,453,172.21 : x
  2. Step 2: Convert to fraction form
    120,610,935.18/180,459,856.62 = 71,453,172.21/x
  3. Step 3: Cross multiply
    120,610,935.18x = 180,459,856.62 × 71,453,172.21
  4. Step 4: Simplify right side
    120,610,935.18x = 12,894,429,212,060,768
  5. Step 5: Solve for x
    x = 12,894,429,212,060,768/120,610,935.18
  6. Step 6: Final answer
    x = 106,909,288.06

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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.