Home / 409,068,392.15-613,688,765.07-132,698,026.67

Finding the Fourth Proportional to 409,068,392.15, 613,688,765.07 and 132,698,026.67

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Solution

The fourth proportional to 409,068,392.15, 613,688,765.07 and 132,698,026.67 is: 199,074,994.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,068,392.15 : 613,688,765.07 = 132,698,026.67 : x
  2. Step 2: Convert to fraction form
    409,068,392.15/613,688,765.07 = 132,698,026.67/x
  3. Step 3: Cross multiply
    409,068,392.15x = 613,688,765.07 × 132,698,026.67
  4. Step 4: Simplify right side
    409,068,392.15x = 81,435,288,111,269,792
  5. Step 5: Solve for x
    x = 81,435,288,111,269,792/409,068,392.15
  6. Step 6: Final answer
    x = 199,074,994.98

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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.