Home / 129,106,556.52-178,165,897.02-70,369,218.60

Finding the Fourth Proportional to 129,106,556.52, 178,165,897.02 and 70,369,218.60

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Solution

The fourth proportional to 129,106,556.52, 178,165,897.02 and 70,369,218.60 is: 97,108,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,106,556.52 : 178,165,897.02 = 70,369,218.60 : x
  2. Step 2: Convert to fraction form
    129,106,556.52/178,165,897.02 = 70,369,218.60/x
  3. Step 3: Cross multiply
    129,106,556.52x = 178,165,897.02 × 70,369,218.60
  4. Step 4: Simplify right side
    129,106,556.52x = 12,537,394,954,465,468
  5. Step 5: Solve for x
    x = 12,537,394,954,465,468/129,106,556.52
  6. Step 6: Final answer
    x = 97,108,894.33

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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.