Home / 1,980,218,131,104.10-2,970,323,489,368.80-620,478,937,777.15

Finding the Fourth Proportional to 1,980,218,131,104.10, 2,970,323,489,368.80 and 620,478,937,777.15

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Solution

The fourth proportional to 1,980,218,131,104.10, 2,970,323,489,368.80 and 620,478,937,777.15 is: 930,717,245,029.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,218,131,104.10 : 2,970,323,489,368.80 = 620,478,937,777.15 : x
  2. Step 2: Convert to fraction form
    1,980,218,131,104.10/2,970,323,489,368.80 = 620,478,937,777.15/x
  3. Step 3: Cross multiply
    1,980,218,131,104.10x = 2,970,323,489,368.80 × 620,478,937,777.15
  4. Step 4: Simplify right side
    1,980,218,131,104.10x = 1,843,023,163,538,070,579,445,760
  5. Step 5: Solve for x
    x = 1,843,023,163,538,070,579,445,760/1,980,218,131,104.10
  6. Step 6: Final answer
    x = 930,717,245,029.20

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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.