Home / 400,729,678.40-601,542,415.20-310,254,363.20

Finding the Fourth Proportional to 400,729,678.40, 601,542,415.20 and 310,254,363.20

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Solution

The fourth proportional to 400,729,678.40, 601,542,415.20 and 310,254,363.20 is: 465,728,317.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,729,678.40 : 601,542,415.20 = 310,254,363.20 : x
  2. Step 2: Convert to fraction form
    400,729,678.40/601,542,415.20 = 310,254,363.20/x
  3. Step 3: Cross multiply
    400,729,678.40x = 601,542,415.20 × 310,254,363.20
  4. Step 4: Simplify right side
    400,729,678.40x = 186,631,158,965,666,016
  5. Step 5: Solve for x
    x = 186,631,158,965,666,016/400,729,678.40
  6. Step 6: Final answer
    x = 465,728,317.68

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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.