Home / 30,362,915.20-45,544,372.80-8,798,220.40

Finding the Fourth Proportional to 30,362,915.20, 45,544,372.80 and 8,798,220.40

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Solution

The fourth proportional to 30,362,915.20, 45,544,372.80 and 8,798,220.40 is: 13,197,330.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,362,915.20 : 45,544,372.80 = 8,798,220.40 : x
  2. Step 2: Convert to fraction form
    30,362,915.20/45,544,372.80 = 8,798,220.40/x
  3. Step 3: Cross multiply
    30,362,915.20x = 45,544,372.80 × 8,798,220.40
  4. Step 4: Simplify right side
    30,362,915.20x = 400,709,429,874,165.12
  5. Step 5: Solve for x
    x = 400,709,429,874,165.12/30,362,915.20
  6. Step 6: Final answer
    x = 13,197,330.60

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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.