Home / 1,327,104,003.40-1,990,656,005.10-647,626,755.40

Finding the Fourth Proportional to 1,327,104,003.40, 1,990,656,005.10 and 647,626,755.40

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Solution

The fourth proportional to 1,327,104,003.40, 1,990,656,005.10 and 647,626,755.40 is: 971,440,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,104,003.40 : 1,990,656,005.10 = 647,626,755.40 : x
  2. Step 2: Convert to fraction form
    1,327,104,003.40/1,990,656,005.10 = 647,626,755.40/x
  3. Step 3: Cross multiply
    1,327,104,003.40x = 1,990,656,005.10 × 647,626,755.40
  4. Step 4: Simplify right side
    1,327,104,003.40x = 1,289,202,089,700,438,784
  5. Step 5: Solve for x
    x = 1,289,202,089,700,438,784/1,327,104,003.40
  6. Step 6: Final answer
    x = 971,440,133.10

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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.