Home / 13,168,653,265.98-18,172,759,502.79-7,147,158,762.60

Finding the Fourth Proportional to 13,168,653,265.98, 18,172,759,502.79 and 7,147,158,762.60

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Solution

The fourth proportional to 13,168,653,265.98, 18,172,759,502.79 and 7,147,158,762.60 is: 9,863,088,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,168,653,265.98 : 18,172,759,502.79 = 7,147,158,762.60 : x
  2. Step 2: Convert to fraction form
    13,168,653,265.98/18,172,759,502.79 = 7,147,158,762.60/x
  3. Step 3: Cross multiply
    13,168,653,265.98x = 18,172,759,502.79 × 7,147,158,762.60
  4. Step 4: Simplify right side
    13,168,653,265.98x = 129,883,597,320,987,983,872
  5. Step 5: Solve for x
    x = 129,883,597,320,987,983,872/13,168,653,265.98
  6. Step 6: Final answer
    x = 9,863,088,859.40

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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.