Home / 129,504,032.48-178,716,041.16-70,766,706.64

Finding the Fourth Proportional to 129,504,032.48, 178,716,041.16 and 70,766,706.64

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Solution

The fourth proportional to 129,504,032.48, 178,716,041.16 and 70,766,706.64 is: 97,658,315.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,504,032.48 : 178,716,041.16 = 70,766,706.64 : x
  2. Step 2: Convert to fraction form
    129,504,032.48/178,716,041.16 = 70,766,706.64/x
  3. Step 3: Cross multiply
    129,504,032.48x = 178,716,041.16 × 70,766,706.64
  4. Step 4: Simplify right side
    129,504,032.48x = 12,647,145,656,631,886
  5. Step 5: Solve for x
    x = 12,647,145,656,631,886/129,504,032.48
  6. Step 6: Final answer
    x = 97,658,315.46

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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.