Home / 56,893,435.76-78,512,939.34-30,787,953.32

Finding the Fourth Proportional to 56,893,435.76, 78,512,939.34 and 30,787,953.32

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Solution

The fourth proportional to 56,893,435.76, 78,512,939.34 and 30,787,953.32 is: 42,487,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,893,435.76 : 78,512,939.34 = 30,787,953.32 : x
  2. Step 2: Convert to fraction form
    56,893,435.76/78,512,939.34 = 30,787,953.32/x
  3. Step 3: Cross multiply
    56,893,435.76x = 78,512,939.34 × 30,787,953.32
  4. Step 4: Simplify right side
    56,893,435.76x = 2,417,252,711,415,911.50
  5. Step 5: Solve for x
    x = 2,417,252,711,415,911.50/56,893,435.76
  6. Step 6: Final answer
    x = 42,487,374.49

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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.