Home / 898,703,999.10-1,348,055,998.65-438,405,234.30

Finding the Fourth Proportional to 898,703,999.10, 1,348,055,998.65 and 438,405,234.30

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Solution

The fourth proportional to 898,703,999.10, 1,348,055,998.65 and 438,405,234.30 is: 657,607,851.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,703,999.10 : 1,348,055,998.65 = 438,405,234.30 : x
  2. Step 2: Convert to fraction form
    898,703,999.10/1,348,055,998.65 = 438,405,234.30/x
  3. Step 3: Cross multiply
    898,703,999.10x = 1,348,055,998.65 × 438,405,234.30
  4. Step 4: Simplify right side
    898,703,999.10x = 590,994,805,937,673,728
  5. Step 5: Solve for x
    x = 590,994,805,937,673,728/898,703,999.10
  6. Step 6: Final answer
    x = 657,607,851.45

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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.