Home / 53,012,121.60-79,518,182.40-42,934,425.60

Finding the Fourth Proportional to 53,012,121.60, 79,518,182.40 and 42,934,425.60

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Solution

The fourth proportional to 53,012,121.60, 79,518,182.40 and 42,934,425.60 is: 64,401,638.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,012,121.60 : 79,518,182.40 = 42,934,425.60 : x
  2. Step 2: Convert to fraction form
    53,012,121.60/79,518,182.40 = 42,934,425.60/x
  3. Step 3: Cross multiply
    53,012,121.60x = 79,518,182.40 × 42,934,425.60
  4. Step 4: Simplify right side
    53,012,121.60x = 3,414,067,486,100,030
  5. Step 5: Solve for x
    x = 3,414,067,486,100,030/53,012,121.60
  6. Step 6: Final answer
    x = 64,401,638.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.