Home / 56,876,106.15-78,489,594.14-30,771,184.37

Finding the Fourth Proportional to 56,876,106.15, 78,489,594.14 and 30,771,184.37

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Solution

The fourth proportional to 56,876,106.15, 78,489,594.14 and 30,771,184.37 is: 42,464,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,876,106.15 : 78,489,594.14 = 30,771,184.37 : x
  2. Step 2: Convert to fraction form
    56,876,106.15/78,489,594.14 = 30,771,184.37/x
  3. Step 3: Cross multiply
    56,876,106.15x = 78,489,594.14 × 30,771,184.37
  4. Step 4: Simplify right side
    56,876,106.15x = 2,415,217,771,862,107.50
  5. Step 5: Solve for x
    x = 2,415,217,771,862,107.50/56,876,106.15
  6. Step 6: Final answer
    x = 42,464,541.53

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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.