Home / 129,157,676.47-178,238,984.66-70,419,862.27

Finding the Fourth Proportional to 129,157,676.47, 178,238,984.66 and 70,419,862.27

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Solution

The fourth proportional to 129,157,676.47, 178,238,984.66 and 70,419,862.27 is: 97,180,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,157,676.47 : 178,238,984.66 = 70,419,862.27 : x
  2. Step 2: Convert to fraction form
    129,157,676.47/178,238,984.66 = 70,419,862.27/x
  3. Step 3: Cross multiply
    129,157,676.47x = 178,238,984.66 × 70,419,862.27
  4. Step 4: Simplify right side
    129,157,676.47x = 12,551,564,750,901,842
  5. Step 5: Solve for x
    x = 12,551,564,750,901,842/129,157,676.47
  6. Step 6: Final answer
    x = 97,180,168.41

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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.