Home / 78,181,014.57-107,889,758.34-42,899,051.40

Finding the Fourth Proportional to 78,181,014.57, 107,889,758.34 and 42,899,051.40

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Solution

The fourth proportional to 78,181,014.57, 107,889,758.34 and 42,899,051.40 is: 59,200,668.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,181,014.57 : 107,889,758.34 = 42,899,051.40 : x
  2. Step 2: Convert to fraction form
    78,181,014.57/107,889,758.34 = 42,899,051.40/x
  3. Step 3: Cross multiply
    78,181,014.57x = 107,889,758.34 × 42,899,051.40
  4. Step 4: Simplify right side
    78,181,014.57x = 4,628,368,288,561,239
  5. Step 5: Solve for x
    x = 4,628,368,288,561,239/78,181,014.57
  6. Step 6: Final answer
    x = 59,200,668.01

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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.