Home / 260,357,103,311.51-390,536,971,391.07-81,268,077,656.14

Finding the Fourth Proportional to 260,357,103,311.51, 390,536,971,391.07 and 81,268,077,656.14

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Solution

The fourth proportional to 260,357,103,311.51, 390,536,971,391.07 and 81,268,077,656.14 is: 121,902,527,393.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,357,103,311.51 : 390,536,971,391.07 = 81,268,077,656.14 : x
  2. Step 2: Convert to fraction form
    260,357,103,311.51/390,536,971,391.07 = 81,268,077,656.14/x
  3. Step 3: Cross multiply
    260,357,103,311.51x = 390,536,971,391.07 × 81,268,077,656.14
  4. Step 4: Simplify right side
    260,357,103,311.51x = 31,738,188,918,603,982,569,472
  5. Step 5: Solve for x
    x = 31,738,188,918,603,982,569,472/260,357,103,311.51
  6. Step 6: Final answer
    x = 121,902,527,393.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.