Home / 290,987,956,523.51-401,559,106,419.63-162,531,279,793.61

Finding the Fourth Proportional to 290,987,956,523.51, 401,559,106,419.63 and 162,531,279,793.61

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Solution

The fourth proportional to 290,987,956,523.51, 401,559,106,419.63 and 162,531,279,793.61 is: 224,290,779,106.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,987,956,523.51 : 401,559,106,419.63 = 162,531,279,793.61 : x
  2. Step 2: Convert to fraction form
    290,987,956,523.51/401,559,106,419.63 = 162,531,279,793.61/x
  3. Step 3: Cross multiply
    290,987,956,523.51x = 401,559,106,419.63 × 162,531,279,793.61
  4. Step 4: Simplify right side
    290,987,956,523.51x = 65,265,915,479,160,893,997,056
  5. Step 5: Solve for x
    x = 65,265,915,479,160,893,997,056/290,987,956,523.51
  6. Step 6: Final answer
    x = 224,290,779,106.14

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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.