Home / 13,166,138,157.48-18,169,270,658.48-7,144,643,561.44

Finding the Fourth Proportional to 13,166,138,157.48, 18,169,270,658.48 and 7,144,643,561.44

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Solution

The fourth proportional to 13,166,138,157.48, 18,169,270,658.48 and 7,144,643,561.44 is: 9,859,608,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166,138,157.48 : 18,169,270,658.48 = 7,144,643,561.44 : x
  2. Step 2: Convert to fraction form
    13,166,138,157.48/18,169,270,658.48 = 7,144,643,561.44/x
  3. Step 3: Cross multiply
    13,166,138,157.48x = 18,169,270,658.48 × 7,144,643,561.44
  4. Step 4: Simplify right side
    13,166,138,157.48x = 129,812,962,626,169,831,424
  5. Step 5: Solve for x
    x = 129,812,962,626,169,831,424/13,166,138,157.48
  6. Step 6: Final answer
    x = 9,859,608,115.42

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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.