Home / 403,307,570.40-605,036,005.20-130,687,231.20

Finding the Fourth Proportional to 403,307,570.40, 605,036,005.20 and 130,687,231.20

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Solution

The fourth proportional to 403,307,570.40, 605,036,005.20 and 130,687,231.20 is: 196,055,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,307,570.40 : 605,036,005.20 = 130,687,231.20 : x
  2. Step 2: Convert to fraction form
    403,307,570.40/605,036,005.20 = 130,687,231.20/x
  3. Step 3: Cross multiply
    403,307,570.40x = 605,036,005.20 × 130,687,231.20
  4. Step 4: Simplify right side
    403,307,570.40x = 79,070,480,295,896,816
  5. Step 5: Solve for x
    x = 79,070,480,295,896,816/403,307,570.40
  6. Step 6: Final answer
    x = 196,055,036.15

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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.