Home / 120,111,000.30-180,166,500.45-69,092,664.30

Finding the Fourth Proportional to 120,111,000.30, 180,166,500.45 and 69,092,664.30

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Solution

The fourth proportional to 120,111,000.30, 180,166,500.45 and 69,092,664.30 is: 103,638,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,111,000.30 : 180,166,500.45 = 69,092,664.30 : x
  2. Step 2: Convert to fraction form
    120,111,000.30/180,166,500.45 = 69,092,664.30/x
  3. Step 3: Cross multiply
    120,111,000.30x = 180,166,500.45 × 69,092,664.30
  4. Step 4: Simplify right side
    120,111,000.30x = 12,448,183,533,697,648
  5. Step 5: Solve for x
    x = 12,448,183,533,697,648/120,111,000.30
  6. Step 6: Final answer
    x = 103,638,996.45

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1.5x scale

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.