Home / 750,390,964.20-1,035,538,745.22-420,368,426.28

Finding the Fourth Proportional to 750,390,964.20, 1,035,538,745.22 and 420,368,426.28

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Solution

The fourth proportional to 750,390,964.20, 1,035,538,745.22 and 420,368,426.28 is: 580,107,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,390,964.20 : 1,035,538,745.22 = 420,368,426.28 : x
  2. Step 2: Convert to fraction form
    750,390,964.20/1,035,538,745.22 = 420,368,426.28/x
  3. Step 3: Cross multiply
    750,390,964.20x = 1,035,538,745.22 × 420,368,426.28
  4. Step 4: Simplify right side
    750,390,964.20x = 435,307,792,680,097,280
  5. Step 5: Solve for x
    x = 435,307,792,680,097,280/750,390,964.20
  6. Step 6: Final answer
    x = 580,107,988.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.