Home / 311,000,647.09-429,178,342.41-169,871,957.49

Finding the Fourth Proportional to 311,000,647.09, 429,178,342.41 and 169,871,957.49

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Solution

The fourth proportional to 311,000,647.09, 429,178,342.41 and 169,871,957.49 is: 234,421,908.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,000,647.09 : 429,178,342.41 = 169,871,957.49 : x
  2. Step 2: Convert to fraction form
    311,000,647.09/429,178,342.41 = 169,871,957.49/x
  3. Step 3: Cross multiply
    311,000,647.09x = 429,178,342.41 × 169,871,957.49
  4. Step 4: Simplify right side
    311,000,647.09x = 72,905,365,137,771,536
  5. Step 5: Solve for x
    x = 72,905,365,137,771,536/311,000,647.09
  6. Step 6: Final answer
    x = 234,421,908.19

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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.