Home / 103,037,824.80-154,424,026.80-78,984,064.80

Finding the Fourth Proportional to 103,037,824.80, 154,424,026.80 and 78,984,064.80

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Solution

The fourth proportional to 103,037,824.80, 154,424,026.80 and 78,984,064.80 is: 118,374,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,037,824.80 : 154,424,026.80 = 78,984,064.80 : x
  2. Step 2: Convert to fraction form
    103,037,824.80/154,424,026.80 = 78,984,064.80/x
  3. Step 3: Cross multiply
    103,037,824.80x = 154,424,026.80 × 78,984,064.80
  4. Step 4: Simplify right side
    103,037,824.80x = 12,197,037,339,448,138
  5. Step 5: Solve for x
    x = 12,197,037,339,448,138/103,037,824.80
  6. Step 6: Final answer
    x = 118,374,367.50

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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.