Home / 12,938,278,311.20-19,411,000,647.60-8,584,713,639.20

Finding the Fourth Proportional to 12,938,278,311.20, 19,411,000,647.60 and 8,584,713,639.20

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Solution

The fourth proportional to 12,938,278,311.20, 19,411,000,647.60 and 8,584,713,639.20 is: 12,879,447,945.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,278,311.20 : 19,411,000,647.60 = 8,584,713,639.20 : x
  2. Step 2: Convert to fraction form
    12,938,278,311.20/19,411,000,647.60 = 8,584,713,639.20/x
  3. Step 3: Cross multiply
    12,938,278,311.20x = 19,411,000,647.60 × 8,584,713,639.20
  4. Step 4: Simplify right side
    12,938,278,311.20x = 166,637,882,009,971,720,192
  5. Step 5: Solve for x
    x = 166,637,882,009,971,720,192/12,938,278,311.20
  6. Step 6: Final answer
    x = 12,879,447,945.23

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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.