Home / 403,634,384.40-605,420,083.80-157,943,305.20

Finding the Fourth Proportional to 403,634,384.40, 605,420,083.80 and 157,943,305.20

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Solution

The fourth proportional to 403,634,384.40, 605,420,083.80 and 157,943,305.20 is: 236,902,634.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,634,384.40 : 605,420,083.80 = 157,943,305.20 : x
  2. Step 2: Convert to fraction form
    403,634,384.40/605,420,083.80 = 157,943,305.20/x
  3. Step 3: Cross multiply
    403,634,384.40x = 605,420,083.80 × 157,943,305.20
  4. Step 4: Simplify right side
    403,634,384.40x = 95,622,049,069,832,960
  5. Step 5: Solve for x
    x = 95,622,049,069,832,960/403,634,384.40
  6. Step 6: Final answer
    x = 236,902,634.58

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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.