Home / 620,209,969.23-855,908,014.51-341,769,428.90

Finding the Fourth Proportional to 620,209,969.23, 855,908,014.51 and 341,769,428.90

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Solution

The fourth proportional to 620,209,969.23, 855,908,014.51 and 341,769,428.90 is: 471,651,872.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,209,969.23 : 855,908,014.51 = 341,769,428.90 : x
  2. Step 2: Convert to fraction form
    620,209,969.23/855,908,014.51 = 341,769,428.90/x
  3. Step 3: Cross multiply
    620,209,969.23x = 855,908,014.51 × 341,769,428.90
  4. Step 4: Simplify right side
    620,209,969.23x = 292,523,193,310,015,616
  5. Step 5: Solve for x
    x = 292,523,193,310,015,616/620,209,969.23
  6. Step 6: Final answer
    x = 471,651,872.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.