Home / 28,779,734.92-39,720,085.14-18,322,410.82

Finding the Fourth Proportional to 28,779,734.92, 39,720,085.14 and 18,322,410.82

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Solution

The fourth proportional to 28,779,734.92, 39,720,085.14 and 18,322,410.82 is: 25,287,505.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779,734.92 : 39,720,085.14 = 18,322,410.82 : x
  2. Step 2: Convert to fraction form
    28,779,734.92/39,720,085.14 = 18,322,410.82/x
  3. Step 3: Cross multiply
    28,779,734.92x = 39,720,085.14 × 18,322,410.82
  4. Step 4: Simplify right side
    28,779,734.92x = 727,767,717,740,457.25
  5. Step 5: Solve for x
    x = 727,767,717,740,457.25/28,779,734.92
  6. Step 6: Final answer
    x = 25,287,505.94

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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.