Home / 66,432,220.40-99,648,330.60-21,007,938.80

Finding the Fourth Proportional to 66,432,220.40, 99,648,330.60 and 21,007,938.80

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Solution

The fourth proportional to 66,432,220.40, 99,648,330.60 and 21,007,938.80 is: 31,511,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432,220.40 : 99,648,330.60 = 21,007,938.80 : x
  2. Step 2: Convert to fraction form
    66,432,220.40/99,648,330.60 = 21,007,938.80/x
  3. Step 3: Cross multiply
    66,432,220.40x = 99,648,330.60 × 21,007,938.80
  4. Step 4: Simplify right side
    66,432,220.40x = 2,093,406,030,766,967.25
  5. Step 5: Solve for x
    x = 2,093,406,030,766,967.25/66,432,220.40
  6. Step 6: Final answer
    x = 31,511,908.20

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1.5x scale

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.