Home / 400,528,989.23-600,861,316.34-138,142,297.35

Finding the Fourth Proportional to 400,528,989.23, 600,861,316.34 and 138,142,297.35

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Solution

The fourth proportional to 400,528,989.23, 600,861,316.34 and 138,142,297.35 is: 207,236,841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,528,989.23 : 600,861,316.34 = 138,142,297.35 : x
  2. Step 2: Convert to fraction form
    400,528,989.23/600,861,316.34 = 138,142,297.35/x
  3. Step 3: Cross multiply
    400,528,989.23x = 600,861,316.34 × 138,142,297.35
  4. Step 4: Simplify right side
    400,528,989.23x = 83,004,362,628,298,048
  5. Step 5: Solve for x
    x = 83,004,362,628,298,048/400,528,989.23
  6. Step 6: Final answer
    x = 207,236,841.43

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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.