Home / 121,318,155.40-181,977,233.10-120,562,328.20

Finding the Fourth Proportional to 121,318,155.40, 181,977,233.10 and 120,562,328.20

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Solution

The fourth proportional to 121,318,155.40, 181,977,233.10 and 120,562,328.20 is: 180,843,492.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,318,155.40 : 181,977,233.10 = 120,562,328.20 : x
  2. Step 2: Convert to fraction form
    121,318,155.40/181,977,233.10 = 120,562,328.20/x
  3. Step 3: Cross multiply
    121,318,155.40x = 181,977,233.10 × 120,562,328.20
  4. Step 4: Simplify right side
    121,318,155.40x = 21,939,598,901,930,104
  5. Step 5: Solve for x
    x = 21,939,598,901,930,104/121,318,155.40
  6. Step 6: Final answer
    x = 180,843,492.30

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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.