Home / 129,085,296.42-178,132,512.13-70,346,700.37

Finding the Fourth Proportional to 129,085,296.42, 178,132,512.13 and 70,346,700.37

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Solution

The fourth proportional to 129,085,296.42, 178,132,512.13 and 70,346,700.37 is: 97,075,614.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,085,296.42 : 178,132,512.13 = 70,346,700.37 : x
  2. Step 2: Convert to fraction form
    129,085,296.42/178,132,512.13 = 70,346,700.37/x
  3. Step 3: Cross multiply
    129,085,296.42x = 178,132,512.13 × 70,346,700.37
  4. Step 4: Simplify right side
    129,085,296.42x = 12,531,034,456,964,502
  5. Step 5: Solve for x
    x = 12,531,034,456,964,502/129,085,296.42
  6. Step 6: Final answer
    x = 97,075,614.38

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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.