Home / 129,213,556.56-178,316,833.48-70,476,222.08

Finding the Fourth Proportional to 129,213,556.56, 178,316,833.48 and 70,476,222.08

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Solution

The fourth proportional to 129,213,556.56, 178,316,833.48 and 70,476,222.08 is: 97,258,345.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,213,556.56 : 178,316,833.48 = 70,476,222.08 : x
  2. Step 2: Convert to fraction form
    129,213,556.56/178,316,833.48 = 70,476,222.08/x
  3. Step 3: Cross multiply
    129,213,556.56x = 178,316,833.48 × 70,476,222.08
  4. Step 4: Simplify right side
    129,213,556.56x = 12,567,096,756,938,858
  5. Step 5: Solve for x
    x = 12,567,096,756,938,858/129,213,556.56
  6. Step 6: Final answer
    x = 97,258,345.73

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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.