Home / 66,048,468.20-99,072,702.30-40,220,435.60

Finding the Fourth Proportional to 66,048,468.20, 99,072,702.30 and 40,220,435.60

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Solution

The fourth proportional to 66,048,468.20, 99,072,702.30 and 40,220,435.60 is: 60,330,653.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,048,468.20 : 99,072,702.30 = 40,220,435.60 : x
  2. Step 2: Convert to fraction form
    66,048,468.20/99,072,702.30 = 40,220,435.60/x
  3. Step 3: Cross multiply
    66,048,468.20x = 99,072,702.30 × 40,220,435.60
  4. Step 4: Simplify right side
    66,048,468.20x = 3,984,747,242,575,122
  5. Step 5: Solve for x
    x = 3,984,747,242,575,122/66,048,468.20
  6. Step 6: Final answer
    x = 60,330,653.40

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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.