Home / 1,327,104,784.40-1,990,657,176.60-680,937,846.80

Finding the Fourth Proportional to 1,327,104,784.40, 1,990,657,176.60 and 680,937,846.80

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Solution

The fourth proportional to 1,327,104,784.40, 1,990,657,176.60 and 680,937,846.80 is: 1,021,406,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,104,784.40 : 1,990,657,176.60 = 680,937,846.80 : x
  2. Step 2: Convert to fraction form
    1,327,104,784.40/1,990,657,176.60 = 680,937,846.80/x
  3. Step 3: Cross multiply
    1,327,104,784.40x = 1,990,657,176.60 × 680,937,846.80
  4. Step 4: Simplify right side
    1,327,104,784.40x = 1,355,513,811,550,971,136
  5. Step 5: Solve for x
    x = 1,355,513,811,550,971,136/1,327,104,784.40
  6. Step 6: Final answer
    x = 1,021,406,770.20

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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.