Home / 79,293,921.68-109,464,059.40-53,178,886.64

Finding the Fourth Proportional to 79,293,921.68, 109,464,059.40 and 53,178,886.64

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Solution

The fourth proportional to 79,293,921.68, 109,464,059.40 and 53,178,886.64 is: 73,412,648.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,293,921.68 : 109,464,059.40 = 53,178,886.64 : x
  2. Step 2: Convert to fraction form
    79,293,921.68/109,464,059.40 = 53,178,886.64/x
  3. Step 3: Cross multiply
    79,293,921.68x = 109,464,059.40 × 53,178,886.64
  4. Step 4: Simplify right side
    79,293,921.68x = 5,821,176,805,986,827
  5. Step 5: Solve for x
    x = 5,821,176,805,986,827/79,293,921.68
  6. Step 6: Final answer
    x = 73,412,648.57

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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.