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Finding the Fourth Proportional to 66,441,019.80, 99,661,529.70 and 62,409,941.40

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Solution

The fourth proportional to 66,441,019.80, 99,661,529.70 and 62,409,941.40 is: 93,614,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,441,019.80 : 99,661,529.70 = 62,409,941.40 : x
  2. Step 2: Convert to fraction form
    66,441,019.80/99,661,529.70 = 62,409,941.40/x
  3. Step 3: Cross multiply
    66,441,019.80x = 99,661,529.70 × 62,409,941.40
  4. Step 4: Simplify right side
    66,441,019.80x = 6,219,870,228,411,360
  5. Step 5: Solve for x
    x = 6,219,870,228,411,360/66,441,019.80
  6. Step 6: Final answer
    x = 93,614,912.10

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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.