Home / 76,789,649.60-115,184,474.40-56,382,315.20

Finding the Fourth Proportional to 76,789,649.60, 115,184,474.40 and 56,382,315.20

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Solution

The fourth proportional to 76,789,649.60, 115,184,474.40 and 56,382,315.20 is: 84,573,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,789,649.60 : 115,184,474.40 = 56,382,315.20 : x
  2. Step 2: Convert to fraction form
    76,789,649.60/115,184,474.40 = 56,382,315.20/x
  3. Step 3: Cross multiply
    76,789,649.60x = 115,184,474.40 × 56,382,315.20
  4. Step 4: Simplify right side
    76,789,649.60x = 6,494,367,341,767,132
  5. Step 5: Solve for x
    x = 6,494,367,341,767,132/76,789,649.60
  6. Step 6: Final answer
    x = 84,573,472.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.