Home / 28,701,712.16-39,608,671.92-15,648,864.56

Finding the Fourth Proportional to 28,701,712.16, 39,608,671.92 and 15,648,864.56

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Solution

The fourth proportional to 28,701,712.16, 39,608,671.92 and 15,648,864.56 is: 21,595,601.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,701,712.16 : 39,608,671.92 = 15,648,864.56 : x
  2. Step 2: Convert to fraction form
    28,701,712.16/39,608,671.92 = 15,648,864.56/x
  3. Step 3: Cross multiply
    28,701,712.16x = 39,608,671.92 × 15,648,864.56
  4. Step 4: Simplify right side
    28,701,712.16x = 619,830,742,277,555.25
  5. Step 5: Solve for x
    x = 619,830,742,277,555.25/28,701,712.16
  6. Step 6: Final answer
    x = 21,595,601.64

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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.