Home / 207,903,656.70-311,855,485.05-198,337,718.70

Finding the Fourth Proportional to 207,903,656.70, 311,855,485.05 and 198,337,718.70

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Solution

The fourth proportional to 207,903,656.70, 311,855,485.05 and 198,337,718.70 is: 297,506,578.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,903,656.70 : 311,855,485.05 = 198,337,718.70 : x
  2. Step 2: Convert to fraction form
    207,903,656.70/311,855,485.05 = 198,337,718.70/x
  3. Step 3: Cross multiply
    207,903,656.70x = 311,855,485.05 × 198,337,718.70
  4. Step 4: Simplify right side
    207,903,656.70x = 61,852,705,468,898,952
  5. Step 5: Solve for x
    x = 61,852,705,468,898,952/207,903,656.70
  6. Step 6: Final answer
    x = 297,506,578.05

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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.