Home / 291,156,111.80-436,734,167.70-138,101,103.80

Finding the Fourth Proportional to 291,156,111.80, 436,734,167.70 and 138,101,103.80

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Solution

The fourth proportional to 291,156,111.80, 436,734,167.70 and 138,101,103.80 is: 207,151,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,156,111.80 : 436,734,167.70 = 138,101,103.80 : x
  2. Step 2: Convert to fraction form
    291,156,111.80/436,734,167.70 = 138,101,103.80/x
  3. Step 3: Cross multiply
    291,156,111.80x = 436,734,167.70 × 138,101,103.80
  4. Step 4: Simplify right side
    291,156,111.80x = 60,313,470,626,544,312
  5. Step 5: Solve for x
    x = 60,313,470,626,544,312/291,156,111.80
  6. Step 6: Final answer
    x = 207,151,655.70

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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.