Home / 839,810,099.60-1,259,715,149.40-778,588,096.40

Finding the Fourth Proportional to 839,810,099.60, 1,259,715,149.40 and 778,588,096.40

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Solution

The fourth proportional to 839,810,099.60, 1,259,715,149.40 and 778,588,096.40 is: 1,167,882,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,810,099.60 : 1,259,715,149.40 = 778,588,096.40 : x
  2. Step 2: Convert to fraction form
    839,810,099.60/1,259,715,149.40 = 778,588,096.40/x
  3. Step 3: Cross multiply
    839,810,099.60x = 1,259,715,149.40 × 778,588,096.40
  4. Step 4: Simplify right side
    839,810,099.60x = 980,799,220,177,587,584
  5. Step 5: Solve for x
    x = 980,799,220,177,587,584/839,810,099.60
  6. Step 6: Final answer
    x = 1,167,882,144.60

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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.