Home / 314,929,941.20-472,394,911.80-185,470,913.60

Finding the Fourth Proportional to 314,929,941.20, 472,394,911.80 and 185,470,913.60

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Solution

The fourth proportional to 314,929,941.20, 472,394,911.80 and 185,470,913.60 is: 278,206,370.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,929,941.20 : 472,394,911.80 = 185,470,913.60 : x
  2. Step 2: Convert to fraction form
    314,929,941.20/472,394,911.80 = 185,470,913.60/x
  3. Step 3: Cross multiply
    314,929,941.20x = 472,394,911.80 × 185,470,913.60
  4. Step 4: Simplify right side
    314,929,941.20x = 87,615,515,871,537,424
  5. Step 5: Solve for x
    x = 87,615,515,871,537,424/314,929,941.20
  6. Step 6: Final answer
    x = 278,206,370.40

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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.