Home / 82,950,400.80-124,425,601.20-78,163,495.20

Finding the Fourth Proportional to 82,950,400.80, 124,425,601.20 and 78,163,495.20

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Solution

The fourth proportional to 82,950,400.80, 124,425,601.20 and 78,163,495.20 is: 117,245,242.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,950,400.80 : 124,425,601.20 = 78,163,495.20 : x
  2. Step 2: Convert to fraction form
    82,950,400.80/124,425,601.20 = 78,163,495.20/x
  3. Step 3: Cross multiply
    82,950,400.80x = 124,425,601.20 × 78,163,495.20
  4. Step 4: Simplify right side
    82,950,400.80x = 9,725,539,882,153,314
  5. Step 5: Solve for x
    x = 9,725,539,882,153,314/82,950,400.80
  6. Step 6: Final answer
    x = 117,245,242.80

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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.