Home / 56,693,152.20-78,236,529.30-30,939,040.20

Finding the Fourth Proportional to 56,693,152.20, 78,236,529.30 and 30,939,040.20

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Solution

The fourth proportional to 56,693,152.20, 78,236,529.30 and 30,939,040.20 is: 42,695,864.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,693,152.20 : 78,236,529.30 = 30,939,040.20 : x
  2. Step 2: Convert to fraction form
    56,693,152.20/78,236,529.30 = 30,939,040.20/x
  3. Step 3: Cross multiply
    56,693,152.20x = 78,236,529.30 × 30,939,040.20
  4. Step 4: Simplify right side
    56,693,152.20x = 2,420,563,125,121,177.50
  5. Step 5: Solve for x
    x = 2,420,563,125,121,177.50/56,693,152.20
  6. Step 6: Final answer
    x = 42,695,864.16

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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.