Home / 729,244,364.10-1,006,357,271.60-399,219,503.10

Finding the Fourth Proportional to 729,244,364.10, 1,006,357,271.60 and 399,219,503.10

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Solution

The fourth proportional to 729,244,364.10, 1,006,357,271.60 and 399,219,503.10 is: 550,922,941.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,244,364.10 : 1,006,357,271.60 = 399,219,503.10 : x
  2. Step 2: Convert to fraction form
    729,244,364.10/1,006,357,271.60 = 399,219,503.10/x
  3. Step 3: Cross multiply
    729,244,364.10x = 1,006,357,271.60 × 399,219,503.10
  4. Step 4: Simplify right side
    729,244,364.10x = 401,757,449,909,223,744
  5. Step 5: Solve for x
    x = 401,757,449,909,223,744/729,244,364.10
  6. Step 6: Final answer
    x = 550,922,941.18

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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.