Home / 120,372,979.11-180,502,550.21-46,631,297.67

Finding the Fourth Proportional to 120,372,979.11, 180,502,550.21 and 46,631,297.67

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Solution

The fourth proportional to 120,372,979.11, 180,502,550.21 and 46,631,297.67 is: 69,924,896.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372,979.11 : 180,502,550.21 = 46,631,297.67 : x
  2. Step 2: Convert to fraction form
    120,372,979.11/180,502,550.21 = 46,631,297.67/x
  3. Step 3: Cross multiply
    120,372,979.11x = 180,502,550.21 × 46,631,297.67
  4. Step 4: Simplify right side
    120,372,979.11x = 8,417,068,148,803,475
  5. Step 5: Solve for x
    x = 8,417,068,148,803,475/120,372,979.11
  6. Step 6: Final answer
    x = 69,924,896.86

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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.