Home / 213,912,266.10-320,868,399.15-199,457,070.90

Finding the Fourth Proportional to 213,912,266.10, 320,868,399.15 and 199,457,070.90

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Solution

The fourth proportional to 213,912,266.10, 320,868,399.15 and 199,457,070.90 is: 299,185,606.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,912,266.10 : 320,868,399.15 = 199,457,070.90 : x
  2. Step 2: Convert to fraction form
    213,912,266.10/320,868,399.15 = 199,457,070.90/x
  3. Step 3: Cross multiply
    213,912,266.10x = 320,868,399.15 × 199,457,070.90
  4. Step 4: Simplify right side
    213,912,266.10x = 63,999,471,038,831,048
  5. Step 5: Solve for x
    x = 63,999,471,038,831,048/213,912,266.10
  6. Step 6: Final answer
    x = 299,185,606.35

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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.