Home / 66,424,019.40-99,636,029.10-39,214,240.20

Finding the Fourth Proportional to 66,424,019.40, 99,636,029.10 and 39,214,240.20

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Solution

The fourth proportional to 66,424,019.40, 99,636,029.10 and 39,214,240.20 is: 58,821,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,424,019.40 : 99,636,029.10 = 39,214,240.20 : x
  2. Step 2: Convert to fraction form
    66,424,019.40/99,636,029.10 = 39,214,240.20/x
  3. Step 3: Cross multiply
    66,424,019.40x = 99,636,029.10 × 39,214,240.20
  4. Step 4: Simplify right side
    66,424,019.40x = 3,907,151,177,701,590
  5. Step 5: Solve for x
    x = 3,907,151,177,701,590/66,424,019.40
  6. Step 6: Final answer
    x = 58,821,360.30

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Double scale
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Similar ratio
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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.