Home / 403,319,629.80-604,979,444.70-399,493,254.60

Finding the Fourth Proportional to 403,319,629.80, 604,979,444.70 and 399,493,254.60

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Solution

The fourth proportional to 403,319,629.80, 604,979,444.70 and 399,493,254.60 is: 599,239,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,319,629.80 : 604,979,444.70 = 399,493,254.60 : x
  2. Step 2: Convert to fraction form
    403,319,629.80/604,979,444.70 = 399,493,254.60/x
  3. Step 3: Cross multiply
    403,319,629.80x = 604,979,444.70 × 399,493,254.60
  4. Step 4: Simplify right side
    403,319,629.80x = 241,685,207,329,303,744
  5. Step 5: Solve for x
    x = 241,685,207,329,303,744/403,319,629.80
  6. Step 6: Final answer
    x = 599,239,881.90

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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.