Home / 66,503,611.40-99,830,066.70-51,424,392.20

Finding the Fourth Proportional to 66,503,611.40, 99,830,066.70 and 51,424,392.20

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Solution

The fourth proportional to 66,503,611.40, 99,830,066.70 and 51,424,392.20 is: 77,194,311.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,503,611.40 : 99,830,066.70 = 51,424,392.20 : x
  2. Step 2: Convert to fraction form
    66,503,611.40/99,830,066.70 = 51,424,392.20/x
  3. Step 3: Cross multiply
    66,503,611.40x = 99,830,066.70 × 51,424,392.20
  4. Step 4: Simplify right side
    66,503,611.40x = 5,133,700,503,332,960
  5. Step 5: Solve for x
    x = 5,133,700,503,332,960/66,503,611.40
  6. Step 6: Final answer
    x = 77,194,311.64

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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.