Home / 317,853,607.20-477,084,841.20-164,609,642.40

Finding the Fourth Proportional to 317,853,607.20, 477,084,841.20 and 164,609,642.40

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Solution

The fourth proportional to 317,853,607.20, 477,084,841.20 and 164,609,642.40 is: 247,072,121.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,853,607.20 : 477,084,841.20 = 164,609,642.40 : x
  2. Step 2: Convert to fraction form
    317,853,607.20/477,084,841.20 = 164,609,642.40/x
  3. Step 3: Cross multiply
    317,853,607.20x = 477,084,841.20 × 164,609,642.40
  4. Step 4: Simplify right side
    317,853,607.20x = 78,532,765,104,392,784
  5. Step 5: Solve for x
    x = 78,532,765,104,392,784/317,853,607.20
  6. Step 6: Final answer
    x = 247,072,121.65

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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.