Home / 66,409,972.20-99,656,948.70-39,116,212.20

Finding the Fourth Proportional to 66,409,972.20, 99,656,948.70 and 39,116,212.20

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Solution

The fourth proportional to 66,409,972.20, 99,656,948.70 and 39,116,212.20 is: 58,699,051.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,409,972.20 : 99,656,948.70 = 39,116,212.20 : x
  2. Step 2: Convert to fraction form
    66,409,972.20/99,656,948.70 = 39,116,212.20/x
  3. Step 3: Cross multiply
    66,409,972.20x = 99,656,948.70 × 39,116,212.20
  4. Step 4: Simplify right side
    66,409,972.20x = 3,898,202,352,553,714.50
  5. Step 5: Solve for x
    x = 3,898,202,352,553,714.50/66,409,972.20
  6. Step 6: Final answer
    x = 58,699,051.11

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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.