Home / 210,936,004.20-316,404,006.30-209,592,311.40

Finding the Fourth Proportional to 210,936,004.20, 316,404,006.30 and 209,592,311.40

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Solution

The fourth proportional to 210,936,004.20, 316,404,006.30 and 209,592,311.40 is: 314,388,467.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,936,004.20 : 316,404,006.30 = 209,592,311.40 : x
  2. Step 2: Convert to fraction form
    210,936,004.20/316,404,006.30 = 209,592,311.40/x
  3. Step 3: Cross multiply
    210,936,004.20x = 316,404,006.30 × 209,592,311.40
  4. Step 4: Simplify right side
    210,936,004.20x = 66,315,847,016,637,168
  5. Step 5: Solve for x
    x = 66,315,847,016,637,168/210,936,004.20
  6. Step 6: Final answer
    x = 314,388,467.10

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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.