Home / 314,938,120.20-472,407,180.30-84,930,455.40

Finding the Fourth Proportional to 314,938,120.20, 472,407,180.30 and 84,930,455.40

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Solution

The fourth proportional to 314,938,120.20, 472,407,180.30 and 84,930,455.40 is: 127,395,683.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,938,120.20 : 472,407,180.30 = 84,930,455.40 : x
  2. Step 2: Convert to fraction form
    314,938,120.20/472,407,180.30 = 84,930,455.40/x
  3. Step 3: Cross multiply
    314,938,120.20x = 472,407,180.30 × 84,930,455.40
  4. Step 4: Simplify right side
    314,938,120.20x = 40,121,756,957,108,912
  5. Step 5: Solve for x
    x = 40,121,756,957,108,912/314,938,120.20
  6. Step 6: Final answer
    x = 127,395,683.10

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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.