Home / 946,599,510.80-1,419,899,266.20-640,834,749.20

Finding the Fourth Proportional to 946,599,510.80, 1,419,899,266.20 and 640,834,749.20

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Solution

The fourth proportional to 946,599,510.80, 1,419,899,266.20 and 640,834,749.20 is: 961,252,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,599,510.80 : 1,419,899,266.20 = 640,834,749.20 : x
  2. Step 2: Convert to fraction form
    946,599,510.80/1,419,899,266.20 = 640,834,749.20/x
  3. Step 3: Cross multiply
    946,599,510.80x = 1,419,899,266.20 × 640,834,749.20
  4. Step 4: Simplify right side
    946,599,510.80x = 909,920,790,144,541,184
  5. Step 5: Solve for x
    x = 909,920,790,144,541,184/946,599,510.80
  6. Step 6: Final answer
    x = 961,252,123.80

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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.