Home / 139,076,492.36-191,915,958.08-77,191,959.38

Finding the Fourth Proportional to 139,076,492.36, 191,915,958.08 and 77,191,959.38

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Solution

The fourth proportional to 139,076,492.36, 191,915,958.08 and 77,191,959.38 is: 106,519,574.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,076,492.36 : 191,915,958.08 = 77,191,959.38 : x
  2. Step 2: Convert to fraction form
    139,076,492.36/191,915,958.08 = 77,191,959.38/x
  3. Step 3: Cross multiply
    139,076,492.36x = 191,915,958.08 × 77,191,959.38
  4. Step 4: Simplify right side
    139,076,492.36x = 14,814,368,839,139,602
  5. Step 5: Solve for x
    x = 14,814,368,839,139,602/139,076,492.36
  6. Step 6: Final answer
    x = 106,519,574.86

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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.