Home / 129,380,614,479.08-178,554,487,134.88-71,507,749,311.80

Finding the Fourth Proportional to 129,380,614,479.08, 178,554,487,134.88 and 71,507,749,311.80

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Solution

The fourth proportional to 129,380,614,479.08, 178,554,487,134.88 and 71,507,749,311.80 is: 98,685,800,465.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,380,614,479.08 : 178,554,487,134.88 = 71,507,749,311.80 : x
  2. Step 2: Convert to fraction form
    129,380,614,479.08/178,554,487,134.88 = 71,507,749,311.80/x
  3. Step 3: Cross multiply
    129,380,614,479.08x = 178,554,487,134.88 × 71,507,749,311.80
  4. Step 4: Simplify right side
    129,380,614,479.08x = 12,768,029,504,538,018,840,576
  5. Step 5: Solve for x
    x = 12,768,029,504,538,018,840,576/129,380,614,479.08
  6. Step 6: Final answer
    x = 98,685,800,465.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.