Home / 72,544,315.84-100,111,162.16-39,504,555.10

Finding the Fourth Proportional to 72,544,315.84, 100,111,162.16 and 39,504,555.10

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Solution

The fourth proportional to 72,544,315.84, 100,111,162.16 and 39,504,555.10 is: 54,516,289.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,544,315.84 : 100,111,162.16 = 39,504,555.10 : x
  2. Step 2: Convert to fraction form
    72,544,315.84/100,111,162.16 = 39,504,555.10/x
  3. Step 3: Cross multiply
    72,544,315.84x = 100,111,162.16 × 39,504,555.10
  4. Step 4: Simplify right side
    72,544,315.84x = 3,954,846,921,674,755
  5. Step 5: Solve for x
    x = 3,954,846,921,674,755/72,544,315.84
  6. Step 6: Final answer
    x = 54,516,289.47

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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.