Home / 628,974,436.80-943,461,655.20-322,864,420.80

Finding the Fourth Proportional to 628,974,436.80, 943,461,655.20 and 322,864,420.80

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Solution

The fourth proportional to 628,974,436.80, 943,461,655.20 and 322,864,420.80 is: 484,296,631.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,974,436.80 : 943,461,655.20 = 322,864,420.80 : x
  2. Step 2: Convert to fraction form
    628,974,436.80/943,461,655.20 = 322,864,420.80/x
  3. Step 3: Cross multiply
    628,974,436.80x = 943,461,655.20 × 322,864,420.80
  4. Step 4: Simplify right side
    628,974,436.80x = 304,610,200,853,157,312
  5. Step 5: Solve for x
    x = 304,610,200,853,157,312/628,974,436.80
  6. Step 6: Final answer
    x = 484,296,631.20

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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.