Home / 243,589,737.09-336,160,446.99-137,758,978.23

Finding the Fourth Proportional to 243,589,737.09, 336,160,446.99 and 137,758,978.23

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Solution

The fourth proportional to 243,589,737.09, 336,160,446.99 and 137,758,978.23 is: 190,111,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,589,737.09 : 336,160,446.99 = 137,758,978.23 : x
  2. Step 2: Convert to fraction form
    243,589,737.09/336,160,446.99 = 137,758,978.23/x
  3. Step 3: Cross multiply
    243,589,737.09x = 336,160,446.99 × 137,758,978.23
  4. Step 4: Simplify right side
    243,589,737.09x = 46,309,119,698,930,472
  5. Step 5: Solve for x
    x = 46,309,119,698,930,472/243,589,737.09
  6. Step 6: Final answer
    x = 190,111,128.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.