Home / 56,893,086.45-78,512,459.40-30,787,604.27

Finding the Fourth Proportional to 56,893,086.45, 78,512,459.40 and 30,787,604.27

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Solution

The fourth proportional to 56,893,086.45, 78,512,459.40 and 30,787,604.27 is: 42,486,893.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893,086.45 : 78,512,459.40 = 30,787,604.27 : x
  2. Step 2: Convert to fraction form
    56,893,086.45/78,512,459.40 = 30,787,604.27/x
  3. Step 3: Cross multiply
    56,893,086.45x = 78,512,459.40 × 30,787,604.27
  4. Step 4: Simplify right side
    56,893,086.45x = 2,417,210,529,879,079.50
  5. Step 5: Solve for x
    x = 2,417,210,529,879,079.50/56,893,086.45
  6. Step 6: Final answer
    x = 42,486,893.94

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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.