Home / 28,531,412.63-39,373,425.74-15,478,671.54

Finding the Fourth Proportional to 28,531,412.63, 39,373,425.74 and 15,478,671.54

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Solution

The fourth proportional to 28,531,412.63, 39,373,425.74 and 15,478,671.54 is: 21,360,608.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531,412.63 : 39,373,425.74 = 15,478,671.54 : x
  2. Step 2: Convert to fraction form
    28,531,412.63/39,373,425.74 = 15,478,671.54/x
  3. Step 3: Cross multiply
    28,531,412.63x = 39,373,425.74 × 15,478,671.54
  4. Step 4: Simplify right side
    28,531,412.63x = 609,448,324,434,041.38
  5. Step 5: Solve for x
    x = 609,448,324,434,041.38/28,531,412.63
  6. Step 6: Final answer
    x = 21,360,608.13

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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.