Home / 738,307,996.80-1,107,378,014.40-193,104,643.20

Finding the Fourth Proportional to 738,307,996.80, 1,107,378,014.40 and 193,104,643.20

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Solution

The fourth proportional to 738,307,996.80, 1,107,378,014.40 and 193,104,643.20 is: 289,634,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,307,996.80 : 1,107,378,014.40 = 193,104,643.20 : x
  2. Step 2: Convert to fraction form
    738,307,996.80/1,107,378,014.40 = 193,104,643.20/x
  3. Step 3: Cross multiply
    738,307,996.80x = 1,107,378,014.40 × 193,104,643.20
  4. Step 4: Simplify right side
    738,307,996.80x = 213,839,836,358,236,480
  5. Step 5: Solve for x
    x = 213,839,836,358,236,480/738,307,996.80
  6. Step 6: Final answer
    x = 289,634,999.60

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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.