Home / 640,178,119.36-883,446,701.16-346,822,687.36

Finding the Fourth Proportional to 640,178,119.36, 883,446,701.16 and 346,822,687.36

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Solution

The fourth proportional to 640,178,119.36, 883,446,701.16 and 346,822,687.36 is: 478,615,794.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,178,119.36 : 883,446,701.16 = 346,822,687.36 : x
  2. Step 2: Convert to fraction form
    640,178,119.36/883,446,701.16 = 346,822,687.36/x
  3. Step 3: Cross multiply
    640,178,119.36x = 883,446,701.16 × 346,822,687.36
  4. Step 4: Simplify right side
    640,178,119.36x = 306,399,359,035,638,016
  5. Step 5: Solve for x
    x = 306,399,359,035,638,016/640,178,119.36
  6. Step 6: Final answer
    x = 478,615,794.21

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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.