Home / 78,705,437.38-117,816,017.55-51,352,833.22

Finding the Fourth Proportional to 78,705,437.38, 117,816,017.55 and 51,352,833.22

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Solution

The fourth proportional to 78,705,437.38, 117,816,017.55 and 51,352,833.22 is: 76,871,262.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,705,437.38 : 117,816,017.55 = 51,352,833.22 : x
  2. Step 2: Convert to fraction form
    78,705,437.38/117,816,017.55 = 51,352,833.22/x
  3. Step 3: Cross multiply
    78,705,437.38x = 117,816,017.55 × 51,352,833.22
  4. Step 4: Simplify right side
    78,705,437.38x = 6,050,186,299,889,743
  5. Step 5: Solve for x
    x = 6,050,186,299,889,743/78,705,437.38
  6. Step 6: Final answer
    x = 76,871,262.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.