Home / 129,106,553.52-178,165,892.88-70,369,215.60

Finding the Fourth Proportional to 129,106,553.52, 178,165,892.88 and 70,369,215.60

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Solution

The fourth proportional to 129,106,553.52, 178,165,892.88 and 70,369,215.60 is: 97,108,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,106,553.52 : 178,165,892.88 = 70,369,215.60 : x
  2. Step 2: Convert to fraction form
    129,106,553.52/178,165,892.88 = 70,369,215.60/x
  3. Step 3: Cross multiply
    129,106,553.52x = 178,165,892.88 × 70,369,215.60
  4. Step 4: Simplify right side
    129,106,553.52x = 12,537,394,128,639,224
  5. Step 5: Solve for x
    x = 12,537,394,128,639,224/129,106,553.52
  6. Step 6: Final answer
    x = 97,108,890.19

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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.