Home / 168,546,913.80-252,820,370.70-86,551,472.40

Finding the Fourth Proportional to 168,546,913.80, 252,820,370.70 and 86,551,472.40

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Solution

The fourth proportional to 168,546,913.80, 252,820,370.70 and 86,551,472.40 is: 129,827,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,546,913.80 : 252,820,370.70 = 86,551,472.40 : x
  2. Step 2: Convert to fraction form
    168,546,913.80/252,820,370.70 = 86,551,472.40/x
  3. Step 3: Cross multiply
    168,546,913.80x = 252,820,370.70 × 86,551,472.40
  4. Step 4: Simplify right side
    168,546,913.80x = 21,881,975,336,798,820
  5. Step 5: Solve for x
    x = 21,881,975,336,798,820/168,546,913.80
  6. Step 6: Final answer
    x = 129,827,208.60

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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.