Home / 314,928,330.40-472,392,495.60-84,920,665.60

Finding the Fourth Proportional to 314,928,330.40, 472,392,495.60 and 84,920,665.60

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Solution

The fourth proportional to 314,928,330.40, 472,392,495.60 and 84,920,665.60 is: 127,380,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,928,330.40 : 472,392,495.60 = 84,920,665.60 : x
  2. Step 2: Convert to fraction form
    314,928,330.40/472,392,495.60 = 84,920,665.60/x
  3. Step 3: Cross multiply
    314,928,330.40x = 472,392,495.60 × 84,920,665.60
  4. Step 4: Simplify right side
    314,928,330.40x = 40,115,885,150,797,072
  5. Step 5: Solve for x
    x = 40,115,885,150,797,072/314,928,330.40
  6. Step 6: Final answer
    x = 127,380,998.40

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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.