Home / 28,570,878.32-39,428,098.53-15,518,392.52

Finding the Fourth Proportional to 28,570,878.32, 39,428,098.53 and 15,518,392.52

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Solution

The fourth proportional to 28,570,878.32, 39,428,098.53 and 15,518,392.52 is: 21,415,537.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570,878.32 : 39,428,098.53 = 15,518,392.52 : x
  2. Step 2: Convert to fraction form
    28,570,878.32/39,428,098.53 = 15,518,392.52/x
  3. Step 3: Cross multiply
    28,570,878.32x = 39,428,098.53 × 15,518,392.52
  4. Step 4: Simplify right side
    28,570,878.32x = 611,860,709,305,775
  5. Step 5: Solve for x
    x = 611,860,709,305,775/28,570,878.32
  6. Step 6: Final answer
    x = 21,415,537.26

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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.