Home / 885,457,270.80-1,221,918,279.12-488,997,036

Finding the Fourth Proportional to 885,457,270.80, 1,221,918,279.12 and 488,997,036

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Solution

The fourth proportional to 885,457,270.80, 1,221,918,279.12 and 488,997,036 is: 674,808,865.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,457,270.80 : 1,221,918,279.12 = 488,997,036 : x
  2. Step 2: Convert to fraction form
    885,457,270.80/1,221,918,279.12 = 488,997,036/x
  3. Step 3: Cross multiply
    885,457,270.80x = 1,221,918,279.12 × 488,997,036
  4. Step 4: Simplify right side
    885,457,270.80x = 597,514,416,723,900,672
  5. Step 5: Solve for x
    x = 597,514,416,723,900,672/885,457,270.80
  6. Step 6: Final answer
    x = 674,808,865.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.