Home / 13,153,894,703.38-18,152,355,267.48-7,132,389,165.64

Finding the Fourth Proportional to 13,153,894,703.38, 18,152,355,267.48 and 7,132,389,165.64

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Solution

The fourth proportional to 13,153,894,703.38, 18,152,355,267.48 and 7,132,389,165.64 is: 9,842,686,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153,894,703.38 : 18,152,355,267.48 = 7,132,389,165.64 : x
  2. Step 2: Convert to fraction form
    13,153,894,703.38/18,152,355,267.48 = 7,132,389,165.64/x
  3. Step 3: Cross multiply
    13,153,894,703.38x = 18,152,355,267.48 × 7,132,389,165.64
  4. Step 4: Simplify right side
    13,153,894,703.38x = 129,469,662,040,622,546,944
  5. Step 5: Solve for x
    x = 129,469,662,040,622,546,944/13,153,894,703.38
  6. Step 6: Final answer
    x = 9,842,686,516.82

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.