Home / 893,617,012.80-1,340,425,519.20-618,117,998.40

Finding the Fourth Proportional to 893,617,012.80, 1,340,425,519.20 and 618,117,998.40

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Solution

The fourth proportional to 893,617,012.80, 1,340,425,519.20 and 618,117,998.40 is: 927,176,997.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,617,012.80 : 1,340,425,519.20 = 618,117,998.40 : x
  2. Step 2: Convert to fraction form
    893,617,012.80/1,340,425,519.20 = 618,117,998.40/x
  3. Step 3: Cross multiply
    893,617,012.80x = 1,340,425,519.20 × 618,117,998.40
  4. Step 4: Simplify right side
    893,617,012.80x = 828,541,138,932,184,704
  5. Step 5: Solve for x
    x = 828,541,138,932,184,704/893,617,012.80
  6. Step 6: Final answer
    x = 927,176,997.60

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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.