Home / 403,398,309.20-605,097,463.80-346,002,681.20

Finding the Fourth Proportional to 403,398,309.20, 605,097,463.80 and 346,002,681.20

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Solution

The fourth proportional to 403,398,309.20, 605,097,463.80 and 346,002,681.20 is: 519,004,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,398,309.20 : 605,097,463.80 = 346,002,681.20 : x
  2. Step 2: Convert to fraction form
    403,398,309.20/605,097,463.80 = 346,002,681.20/x
  3. Step 3: Cross multiply
    403,398,309.20x = 605,097,463.80 × 346,002,681.20
  4. Step 4: Simplify right side
    403,398,309.20x = 209,365,344,862,119,904
  5. Step 5: Solve for x
    x = 209,365,344,862,119,904/403,398,309.20
  6. Step 6: Final answer
    x = 519,004,021.80

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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.