Home / 208,139,256.80-312,208,885.20-195,384,672.80

Finding the Fourth Proportional to 208,139,256.80, 312,208,885.20 and 195,384,672.80

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Solution

The fourth proportional to 208,139,256.80, 312,208,885.20 and 195,384,672.80 is: 293,077,009.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,139,256.80 : 312,208,885.20 = 195,384,672.80 : x
  2. Step 2: Convert to fraction form
    208,139,256.80/312,208,885.20 = 195,384,672.80/x
  3. Step 3: Cross multiply
    208,139,256.80x = 312,208,885.20 × 195,384,672.80
  4. Step 4: Simplify right side
    208,139,256.80x = 61,000,830,880,054,760
  5. Step 5: Solve for x
    x = 61,000,830,880,054,760/208,139,256.80
  6. Step 6: Final answer
    x = 293,077,009.20

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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.