Home / 20,308,005,781.96-30,445,987,877.34-12,830,828,274.40

Finding the Fourth Proportional to 20,308,005,781.96, 30,445,987,877.34 and 12,830,828,274.40

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Solution

The fourth proportional to 20,308,005,781.96, 30,445,987,877.34 and 12,830,828,274.40 is: 19,236,120,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308,005,781.96 : 30,445,987,877.34 = 12,830,828,274.40 : x
  2. Step 2: Convert to fraction form
    20,308,005,781.96/30,445,987,877.34 = 12,830,828,274.40/x
  3. Step 3: Cross multiply
    20,308,005,781.96x = 30,445,987,877.34 × 12,830,828,274.40
  4. Step 4: Simplify right side
    20,308,005,781.96x = 390,647,242,098,613,682,176
  5. Step 5: Solve for x
    x = 390,647,242,098,613,682,176/20,308,005,781.96
  6. Step 6: Final answer
    x = 19,236,120,291.32

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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.