Home / 120,516,428.34-166,330,841.04-73,500,792.12

Finding the Fourth Proportional to 120,516,428.34, 166,330,841.04 and 73,500,792.12

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Solution

The fourth proportional to 120,516,428.34, 166,330,841.04 and 73,500,792.12 is: 101,442,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,516,428.34 : 166,330,841.04 = 73,500,792.12 : x
  2. Step 2: Convert to fraction form
    120,516,428.34/166,330,841.04 = 73,500,792.12/x
  3. Step 3: Cross multiply
    120,516,428.34x = 166,330,841.04 × 73,500,792.12
  4. Step 4: Simplify right side
    120,516,428.34x = 12,225,448,570,425,804
  5. Step 5: Solve for x
    x = 12,225,448,570,425,804/120,516,428.34
  6. Step 6: Final answer
    x = 101,442,174.64

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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.