Home / 138,077,858.16-190,552,020.96-75,357,390.48

Finding the Fourth Proportional to 138,077,858.16, 190,552,020.96 and 75,357,390.48

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Solution

The fourth proportional to 138,077,858.16, 190,552,020.96 and 75,357,390.48 is: 103,995,696.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,077,858.16 : 190,552,020.96 = 75,357,390.48 : x
  2. Step 2: Convert to fraction form
    138,077,858.16/190,552,020.96 = 75,357,390.48/x
  3. Step 3: Cross multiply
    138,077,858.16x = 190,552,020.96 × 75,357,390.48
  4. Step 4: Simplify right side
    138,077,858.16x = 14,359,503,050,235,866
  5. Step 5: Solve for x
    x = 14,359,503,050,235,866/138,077,858.16
  6. Step 6: Final answer
    x = 103,995,696.64

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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.