Home / 13,291,465,377.96-18,347,869,951.38-8,281,687,987.98

Finding the Fourth Proportional to 13,291,465,377.96, 18,347,869,951.38 and 8,281,687,987.98

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Solution

The fourth proportional to 13,291,465,377.96, 18,347,869,951.38 and 8,281,687,987.98 is: 11,432,248,428.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,465,377.96 : 18,347,869,951.38 = 8,281,687,987.98 : x
  2. Step 2: Convert to fraction form
    13,291,465,377.96/18,347,869,951.38 = 8,281,687,987.98/x
  3. Step 3: Cross multiply
    13,291,465,377.96x = 18,347,869,951.38 × 8,281,687,987.98
  4. Step 4: Simplify right side
    13,291,465,377.96x = 151,951,334,181,362,925,568
  5. Step 5: Solve for x
    x = 151,951,334,181,362,925,568/13,291,465,377.96
  6. Step 6: Final answer
    x = 11,432,248,428.63

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Double scale
Find fourth proportional to 13,291,465,378.96, 18,347,869,952.76 and 8,281,687,988.98
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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.