Home / 386,217,679.20-579,326,518.80-113,616,002.40

Finding the Fourth Proportional to 386,217,679.20, 579,326,518.80 and 113,616,002.40

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Solution

The fourth proportional to 386,217,679.20, 579,326,518.80 and 113,616,002.40 is: 170,424,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,217,679.20 : 579,326,518.80 = 113,616,002.40 : x
  2. Step 2: Convert to fraction form
    386,217,679.20/579,326,518.80 = 113,616,002.40/x
  3. Step 3: Cross multiply
    386,217,679.20x = 579,326,518.80 × 113,616,002.40
  4. Step 4: Simplify right side
    386,217,679.20x = 65,820,763,150,364,440
  5. Step 5: Solve for x
    x = 65,820,763,150,364,440/386,217,679.20
  6. Step 6: Final answer
    x = 170,424,003.60

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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.