Home / 28,570,880.32-39,428,101.29-15,518,394.52

Finding the Fourth Proportional to 28,570,880.32, 39,428,101.29 and 15,518,394.52

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Solution

The fourth proportional to 28,570,880.32, 39,428,101.29 and 15,518,394.52 is: 21,415,540.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570,880.32 : 39,428,101.29 = 15,518,394.52 : x
  2. Step 2: Convert to fraction form
    28,570,880.32/39,428,101.29 = 15,518,394.52/x
  3. Step 3: Cross multiply
    28,570,880.32x = 39,428,101.29 × 15,518,394.52
  4. Step 4: Simplify right side
    28,570,880.32x = 611,860,830,992,740.88
  5. Step 5: Solve for x
    x = 611,860,830,992,740.88/28,570,880.32
  6. Step 6: Final answer
    x = 21,415,540.02

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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.