Home / 103,037,820.80-154,424,020.80-78,984,060.80

Finding the Fourth Proportional to 103,037,820.80, 154,424,020.80 and 78,984,060.80

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Solution

The fourth proportional to 103,037,820.80, 154,424,020.80 and 78,984,060.80 is: 118,374,361.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,037,820.80 : 154,424,020.80 = 78,984,060.80 : x
  2. Step 2: Convert to fraction form
    103,037,820.80/154,424,020.80 = 78,984,060.80/x
  3. Step 3: Cross multiply
    103,037,820.80x = 154,424,020.80 × 78,984,060.80
  4. Step 4: Simplify right side
    103,037,820.80x = 12,197,036,247,847,666
  5. Step 5: Solve for x
    x = 12,197,036,247,847,666/103,037,820.80
  6. Step 6: Final answer
    x = 118,374,361.50

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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.