Home / 978,550,203.15-1,350,399,501.63-538,517,055.15

Finding the Fourth Proportional to 978,550,203.15, 1,350,399,501.63 and 538,517,055.15

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Solution

The fourth proportional to 978,550,203.15, 1,350,399,501.63 and 538,517,055.15 is: 743,153,657.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,550,203.15 : 1,350,399,501.63 = 538,517,055.15 : x
  2. Step 2: Convert to fraction form
    978,550,203.15/1,350,399,501.63 = 538,517,055.15/x
  3. Step 3: Cross multiply
    978,550,203.15x = 1,350,399,501.63 × 538,517,055.15
  4. Step 4: Simplify right side
    978,550,203.15x = 727,213,162,893,815,296
  5. Step 5: Solve for x
    x = 727,213,162,893,815,296/978,550,203.15
  6. Step 6: Final answer
    x = 743,153,657.88

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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.