Home / 766,603,463.70-1,149,905,195.55-330,113,255.70

Finding the Fourth Proportional to 766,603,463.70, 1,149,905,195.55 and 330,113,255.70

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Solution

The fourth proportional to 766,603,463.70, 1,149,905,195.55 and 330,113,255.70 is: 495,169,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,603,463.70 : 1,149,905,195.55 = 330,113,255.70 : x
  2. Step 2: Convert to fraction form
    766,603,463.70/1,149,905,195.55 = 330,113,255.70/x
  3. Step 3: Cross multiply
    766,603,463.70x = 1,149,905,195.55 × 330,113,255.70
  4. Step 4: Simplify right side
    766,603,463.70x = 379,598,947,849,355,648
  5. Step 5: Solve for x
    x = 379,598,947,849,355,648/766,603,463.70
  6. Step 6: Final answer
    x = 495,169,883.55

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Double scale
Find fourth proportional to 766,603,464.70, 1,149,905,197.05 and 330,113,256.70
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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.