Home / 898,691,061.78-1,240,195,345.74-502,214,051.88

Finding the Fourth Proportional to 898,691,061.78, 1,240,195,345.74 and 502,214,051.88

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Solution

The fourth proportional to 898,691,061.78, 1,240,195,345.74 and 502,214,051.88 is: 693,056,330.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,691,061.78 : 1,240,195,345.74 = 502,214,051.88 : x
  2. Step 2: Convert to fraction form
    898,691,061.78/1,240,195,345.74 = 502,214,051.88/x
  3. Step 3: Cross multiply
    898,691,061.78x = 1,240,195,345.74 × 502,214,051.88
  4. Step 4: Simplify right side
    898,691,061.78x = 622,843,529,706,802,944
  5. Step 5: Solve for x
    x = 622,843,529,706,802,944/898,691,061.78
  6. Step 6: Final answer
    x = 693,056,330.70

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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.