Home / 1,135,007,152.80-1,702,510,729.20-905,424,640.80

Finding the Fourth Proportional to 1,135,007,152.80, 1,702,510,729.20 and 905,424,640.80

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Solution

The fourth proportional to 1,135,007,152.80, 1,702,510,729.20 and 905,424,640.80 is: 1,358,136,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,007,152.80 : 1,702,510,729.20 = 905,424,640.80 : x
  2. Step 2: Convert to fraction form
    1,135,007,152.80/1,702,510,729.20 = 905,424,640.80/x
  3. Step 3: Cross multiply
    1,135,007,152.80x = 1,702,510,729.20 × 905,424,640.80
  4. Step 4: Simplify right side
    1,135,007,152.80x = 1,541,495,165,444,056,064
  5. Step 5: Solve for x
    x = 1,541,495,165,444,056,064/1,135,007,152.80
  6. Step 6: Final answer
    x = 1,358,136,961.20

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Double scale
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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.