Home / 808,920,360.80-1,213,380,541.20-400,773,672.80

Finding the Fourth Proportional to 808,920,360.80, 1,213,380,541.20 and 400,773,672.80

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Solution

The fourth proportional to 808,920,360.80, 1,213,380,541.20 and 400,773,672.80 is: 601,160,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,920,360.80 : 1,213,380,541.20 = 400,773,672.80 : x
  2. Step 2: Convert to fraction form
    808,920,360.80/1,213,380,541.20 = 400,773,672.80/x
  3. Step 3: Cross multiply
    808,920,360.80x = 1,213,380,541.20 × 400,773,672.80
  4. Step 4: Simplify right side
    808,920,360.80x = 486,290,976,000,775,744
  5. Step 5: Solve for x
    x = 486,290,976,000,775,744/808,920,360.80
  6. Step 6: Final answer
    x = 601,160,509.20

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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.