Home / 100,520,421,109.23-138,717,052,777.39-54,793,695,342.63

Finding the Fourth Proportional to 100,520,421,109.23, 138,717,052,777.39 and 54,793,695,342.63

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Solution

The fourth proportional to 100,520,421,109.23, 138,717,052,777.39 and 54,793,695,342.63 is: 75,614,684,507.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,520,421,109.23 : 138,717,052,777.39 = 54,793,695,342.63 : x
  2. Step 2: Convert to fraction form
    100,520,421,109.23/138,717,052,777.39 = 54,793,695,342.63/x
  3. Step 3: Cross multiply
    100,520,421,109.23x = 138,717,052,777.39 × 54,793,695,342.63
  4. Step 4: Simplify right side
    100,520,421,109.23x = 7,600,819,928,711,834,894,336
  5. Step 5: Solve for x
    x = 7,600,819,928,711,834,894,336/100,520,421,109.23
  6. Step 6: Final answer
    x = 75,614,684,507.26

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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.