Home / 631,027,489.13-870,862,997.18-348,763,864.15

Finding the Fourth Proportional to 631,027,489.13, 870,862,997.18 and 348,763,864.15

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Solution

The fourth proportional to 631,027,489.13, 870,862,997.18 and 348,763,864.15 is: 481,319,038.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,027,489.13 : 870,862,997.18 = 348,763,864.15 : x
  2. Step 2: Convert to fraction form
    631,027,489.13/870,862,997.18 = 348,763,864.15/x
  3. Step 3: Cross multiply
    631,027,489.13x = 870,862,997.18 × 348,763,864.15
  4. Step 4: Simplify right side
    631,027,489.13x = 303,725,544,035,649,216
  5. Step 5: Solve for x
    x = 303,725,544,035,649,216/631,027,489.13
  6. Step 6: Final answer
    x = 481,319,038.03

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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.