Home / 129,380,614,496.58-178,554,487,159.11-71,507,749,329.30

Finding the Fourth Proportional to 129,380,614,496.58, 178,554,487,159.11 and 71,507,749,329.30

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Solution

The fourth proportional to 129,380,614,496.58, 178,554,487,159.11 and 71,507,749,329.30 is: 98,685,800,489.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,380,614,496.58 : 178,554,487,159.11 = 71,507,749,329.30 : x
  2. Step 2: Convert to fraction form
    129,380,614,496.58/178,554,487,159.11 = 71,507,749,329.30/x
  3. Step 3: Cross multiply
    129,380,614,496.58x = 178,554,487,159.11 × 71,507,749,329.30
  4. Step 4: Simplify right side
    129,380,614,496.58x = 12,768,029,509,395,352,125,440
  5. Step 5: Solve for x
    x = 12,768,029,509,395,352,125,440/129,380,614,496.58
  6. Step 6: Final answer
    x = 98,685,800,489.32

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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.