Home / 66,553,740.80-99,830,611.20-30,721,932.80

Finding the Fourth Proportional to 66,553,740.80, 99,830,611.20 and 30,721,932.80

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Solution

The fourth proportional to 66,553,740.80, 99,830,611.20 and 30,721,932.80 is: 46,082,899.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,553,740.80 : 99,830,611.20 = 30,721,932.80 : x
  2. Step 2: Convert to fraction form
    66,553,740.80/99,830,611.20 = 30,721,932.80/x
  3. Step 3: Cross multiply
    66,553,740.80x = 99,830,611.20 × 30,721,932.80
  4. Step 4: Simplify right side
    66,553,740.80x = 3,066,989,328,669,327.50
  5. Step 5: Solve for x
    x = 3,066,989,328,669,327.50/66,553,740.80
  6. Step 6: Final answer
    x = 46,082,899.20

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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.