Home / 631,083,489.66-870,899,593.23-352,636,749.18

Finding the Fourth Proportional to 631,083,489.66, 870,899,593.23 and 352,636,749.18

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Solution

The fourth proportional to 631,083,489.66, 870,899,593.23 and 352,636,749.18 is: 486,641,159.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,083,489.66 : 870,899,593.23 = 352,636,749.18 : x
  2. Step 2: Convert to fraction form
    631,083,489.66/870,899,593.23 = 352,636,749.18/x
  3. Step 3: Cross multiply
    631,083,489.66x = 870,899,593.23 × 352,636,749.18
  4. Step 4: Simplify right side
    631,083,489.66x = 307,111,201,418,811,520
  5. Step 5: Solve for x
    x = 307,111,201,418,811,520/631,083,489.66
  6. Step 6: Final answer
    x = 486,641,159.93

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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.