Home / 210,362,133.70-315,543,200.55-207,492,352.30

Finding the Fourth Proportional to 210,362,133.70, 315,543,200.55 and 207,492,352.30

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Solution

The fourth proportional to 210,362,133.70, 315,543,200.55 and 207,492,352.30 is: 311,238,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,362,133.70 : 315,543,200.55 = 207,492,352.30 : x
  2. Step 2: Convert to fraction form
    210,362,133.70/315,543,200.55 = 207,492,352.30/x
  3. Step 3: Cross multiply
    210,362,133.70x = 315,543,200.55 × 207,492,352.30
  4. Step 4: Simplify right side
    210,362,133.70x = 65,472,800,934,390,160
  5. Step 5: Solve for x
    x = 65,472,800,934,390,160/210,362,133.70
  6. Step 6: Final answer
    x = 311,238,528.45

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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.