Home / 20,391,184,256.52-28,136,098,735.32-11,358,717,582.72

Finding the Fourth Proportional to 20,391,184,256.52, 28,136,098,735.32 and 11,358,717,582.72

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Solution

The fourth proportional to 20,391,184,256.52, 28,136,098,735.32 and 11,358,717,582.72 is: 15,672,949,417.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,391,184,256.52 : 28,136,098,735.32 = 11,358,717,582.72 : x
  2. Step 2: Convert to fraction form
    20,391,184,256.52/28,136,098,735.32 = 11,358,717,582.72/x
  3. Step 3: Cross multiply
    20,391,184,256.52x = 28,136,098,735.32 × 11,358,717,582.72
  4. Step 4: Simplify right side
    20,391,184,256.52x = 319,589,999,414,025,191,424
  5. Step 5: Solve for x
    x = 319,589,999,414,025,191,424/20,391,184,256.52
  6. Step 6: Final answer
    x = 15,672,949,417.43

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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.