Home / 215,100,720,423.78-296,865,023,646.60-122,424,107,900.28

Finding the Fourth Proportional to 215,100,720,423.78, 296,865,023,646.60 and 122,424,107,900.28

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Solution

The fourth proportional to 215,100,720,423.78, 296,865,023,646.60 and 122,424,107,900.28 is: 168,960,083,514.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,100,720,423.78 : 296,865,023,646.60 = 122,424,107,900.28 : x
  2. Step 2: Convert to fraction form
    215,100,720,423.78/296,865,023,646.60 = 122,424,107,900.28/x
  3. Step 3: Cross multiply
    215,100,720,423.78x = 296,865,023,646.60 × 122,424,107,900.28
  4. Step 4: Simplify right side
    215,100,720,423.78x = 36,343,435,686,730,528,718,848
  5. Step 5: Solve for x
    x = 36,343,435,686,730,528,718,848/215,100,720,423.78
  6. Step 6: Final answer
    x = 168,960,083,514.03

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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.