Home / 139,046,197.17-191,882,509.63-76,320,437.48

Finding the Fourth Proportional to 139,046,197.17, 191,882,509.63 and 76,320,437.48

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Solution

The fourth proportional to 139,046,197.17, 191,882,509.63 and 76,320,437.48 is: 105,321,521.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,046,197.17 : 191,882,509.63 = 76,320,437.48 : x
  2. Step 2: Convert to fraction form
    139,046,197.17/191,882,509.63 = 76,320,437.48/x
  3. Step 3: Cross multiply
    139,046,197.17x = 191,882,509.63 × 76,320,437.48
  4. Step 4: Simplify right side
    139,046,197.17x = 14,644,557,078,571,698
  5. Step 5: Solve for x
    x = 14,644,557,078,571,698/139,046,197.17
  6. Step 6: Final answer
    x = 105,321,521.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.