Home / 108,918,020.30-163,377,030.45-100,603,921.10

Finding the Fourth Proportional to 108,918,020.30, 163,377,030.45 and 100,603,921.10

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Solution

The fourth proportional to 108,918,020.30, 163,377,030.45 and 100,603,921.10 is: 150,905,881.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,918,020.30 : 163,377,030.45 = 100,603,921.10 : x
  2. Step 2: Convert to fraction form
    108,918,020.30/163,377,030.45 = 100,603,921.10/x
  3. Step 3: Cross multiply
    108,918,020.30x = 163,377,030.45 × 100,603,921.10
  4. Step 4: Simplify right side
    108,918,020.30x = 16,436,369,880,944,096
  5. Step 5: Solve for x
    x = 16,436,369,880,944,096/108,918,020.30
  6. Step 6: Final answer
    x = 150,905,881.65

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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.