Home / 1,252,605,838.82-1,878,884,188.49-505,601,740.40

Finding the Fourth Proportional to 1,252,605,838.82, 1,878,884,188.49 and 505,601,740.40

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Solution

The fourth proportional to 1,252,605,838.82, 1,878,884,188.49 and 505,601,740.40 is: 758,392,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,605,838.82 : 1,878,884,188.49 = 505,601,740.40 : x
  2. Step 2: Convert to fraction form
    1,252,605,838.82/1,878,884,188.49 = 505,601,740.40/x
  3. Step 3: Cross multiply
    1,252,605,838.82x = 1,878,884,188.49 × 505,601,740.40
  4. Step 4: Simplify right side
    1,252,605,838.82x = 949,967,115,702,455,168
  5. Step 5: Solve for x
    x = 949,967,115,702,455,168/1,252,605,838.82
  6. Step 6: Final answer
    x = 758,392,693.27

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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.