Home / 56,893,451.76-78,512,961.42-30,787,969.32

Finding the Fourth Proportional to 56,893,451.76, 78,512,961.42 and 30,787,969.32

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Solution

The fourth proportional to 56,893,451.76, 78,512,961.42 and 30,787,969.32 is: 42,487,396.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893,451.76 : 78,512,961.42 = 30,787,969.32 : x
  2. Step 2: Convert to fraction form
    56,893,451.76/78,512,961.42 = 30,787,969.32/x
  3. Step 3: Cross multiply
    56,893,451.76x = 78,512,961.42 × 30,787,969.32
  4. Step 4: Simplify right side
    56,893,451.76x = 2,417,254,647,421,303.50
  5. Step 5: Solve for x
    x = 2,417,254,647,421,303.50/56,893,451.76
  6. Step 6: Final answer
    x = 42,487,396.57

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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.