Home / 885,680,066.80-1,328,520,100.20-425,507,273.20

Finding the Fourth Proportional to 885,680,066.80, 1,328,520,100.20 and 425,507,273.20

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Solution

The fourth proportional to 885,680,066.80, 1,328,520,100.20 and 425,507,273.20 is: 638,260,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,680,066.80 : 1,328,520,100.20 = 425,507,273.20 : x
  2. Step 2: Convert to fraction form
    885,680,066.80/1,328,520,100.20 = 425,507,273.20/x
  3. Step 3: Cross multiply
    885,680,066.80x = 1,328,520,100.20 × 425,507,273.20
  4. Step 4: Simplify right side
    885,680,066.80x = 565,294,965,227,492,800
  5. Step 5: Solve for x
    x = 565,294,965,227,492,800/885,680,066.80
  6. Step 6: Final answer
    x = 638,260,909.80

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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.