Home / 128,011,544.63-191,939,559.02-50,195,223.35

Finding the Fourth Proportional to 128,011,544.63, 191,939,559.02 and 50,195,223.35

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Solution

The fourth proportional to 128,011,544.63, 191,939,559.02 and 50,195,223.35 is: 75,262,344.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,011,544.63 : 191,939,559.02 = 50,195,223.35 : x
  2. Step 2: Convert to fraction form
    128,011,544.63/191,939,559.02 = 50,195,223.35/x
  3. Step 3: Cross multiply
    128,011,544.63x = 191,939,559.02 × 50,195,223.35
  4. Step 4: Simplify right side
    128,011,544.63x = 9,634,449,034,458,430
  5. Step 5: Solve for x
    x = 9,634,449,034,458,430/128,011,544.63
  6. Step 6: Final answer
    x = 75,262,344.99

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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.