Home / 215,663,047.80-323,494,571.70-129,357,029.40

Finding the Fourth Proportional to 215,663,047.80, 323,494,571.70 and 129,357,029.40

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Solution

The fourth proportional to 215,663,047.80, 323,494,571.70 and 129,357,029.40 is: 194,035,544.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,663,047.80 : 323,494,571.70 = 129,357,029.40 : x
  2. Step 2: Convert to fraction form
    215,663,047.80/323,494,571.70 = 129,357,029.40/x
  3. Step 3: Cross multiply
    215,663,047.80x = 323,494,571.70 × 129,357,029.40
  4. Step 4: Simplify right side
    215,663,047.80x = 41,846,296,822,137,312
  5. Step 5: Solve for x
    x = 41,846,296,822,137,312/215,663,047.80
  6. Step 6: Final answer
    x = 194,035,544.10

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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.