Home / 18,916,256,820.80-28,374,385,231.20-11,950,553,345.60

Finding the Fourth Proportional to 18,916,256,820.80, 28,374,385,231.20 and 11,950,553,345.60

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Solution

The fourth proportional to 18,916,256,820.80, 28,374,385,231.20 and 11,950,553,345.60 is: 17,925,830,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916,256,820.80 : 28,374,385,231.20 = 11,950,553,345.60 : x
  2. Step 2: Convert to fraction form
    18,916,256,820.80/28,374,385,231.20 = 11,950,553,345.60/x
  3. Step 3: Cross multiply
    18,916,256,820.80x = 28,374,385,231.20 × 11,950,553,345.60
  4. Step 4: Simplify right side
    18,916,256,820.80x = 339,089,604,354,060,386,304
  5. Step 5: Solve for x
    x = 339,089,604,354,060,386,304/18,916,256,820.80
  6. Step 6: Final answer
    x = 17,925,830,018.40

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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.