Home / 42,984,133.85-64,476,200.78-28,560,431.45

Finding the Fourth Proportional to 42,984,133.85, 64,476,200.78 and 28,560,431.45

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Solution

The fourth proportional to 42,984,133.85, 64,476,200.78 and 28,560,431.45 is: 42,840,647.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,984,133.85 : 64,476,200.78 = 28,560,431.45 : x
  2. Step 2: Convert to fraction form
    42,984,133.85/64,476,200.78 = 28,560,431.45/x
  3. Step 3: Cross multiply
    42,984,133.85x = 64,476,200.78 × 28,560,431.45
  4. Step 4: Simplify right side
    42,984,133.85x = 1,841,468,112,390,824.25
  5. Step 5: Solve for x
    x = 1,841,468,112,390,824.25/42,984,133.85
  6. Step 6: Final answer
    x = 42,840,647.18

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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.