Home / 7,079,429,632.40-10,619,144,448.60-6,378,021,990.80

Finding the Fourth Proportional to 7,079,429,632.40, 10,619,144,448.60 and 6,378,021,990.80

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Solution

The fourth proportional to 7,079,429,632.40, 10,619,144,448.60 and 6,378,021,990.80 is: 9,567,032,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079,429,632.40 : 10,619,144,448.60 = 6,378,021,990.80 : x
  2. Step 2: Convert to fraction form
    7,079,429,632.40/10,619,144,448.60 = 6,378,021,990.80/x
  3. Step 3: Cross multiply
    7,079,429,632.40x = 10,619,144,448.60 × 6,378,021,990.80
  4. Step 4: Simplify right side
    7,079,429,632.40x = 67,729,136,816,652,541,952
  5. Step 5: Solve for x
    x = 67,729,136,816,652,541,952/7,079,429,632.40
  6. Step 6: Final answer
    x = 9,567,032,986.20

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Double scale
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Similar ratio
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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.