Home / 103,786,756-143,201,961.78-61,962,681.40

Finding the Fourth Proportional to 103,786,756, 143,201,961.78 and 61,962,681.40

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Solution

The fourth proportional to 103,786,756, 143,201,961.78 and 61,962,681.40 is: 85,494,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,786,756 : 143,201,961.78 = 61,962,681.40 : x
  2. Step 2: Convert to fraction form
    103,786,756/143,201,961.78 = 61,962,681.40/x
  3. Step 3: Cross multiply
    103,786,756x = 143,201,961.78 × 61,962,681.40
  4. Step 4: Simplify right side
    103,786,756x = 8,873,177,533,629,117
  5. Step 5: Solve for x
    x = 8,873,177,533,629,117/103,786,756
  6. Step 6: Final answer
    x = 85,494,314.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.