Home / 314,938,144.20-472,407,216.30-84,930,479.40

Finding the Fourth Proportional to 314,938,144.20, 472,407,216.30 and 84,930,479.40

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Solution

The fourth proportional to 314,938,144.20, 472,407,216.30 and 84,930,479.40 is: 127,395,719.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,938,144.20 : 472,407,216.30 = 84,930,479.40 : x
  2. Step 2: Convert to fraction form
    314,938,144.20/472,407,216.30 = 84,930,479.40/x
  3. Step 3: Cross multiply
    314,938,144.20x = 472,407,216.30 × 84,930,479.40
  4. Step 4: Simplify right side
    314,938,144.20x = 40,121,771,352,378,496
  5. Step 5: Solve for x
    x = 40,121,771,352,378,496/314,938,144.20
  6. Step 6: Final answer
    x = 127,395,719.10

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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.