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Finding the Fourth Proportional to 613,281,377.70, 919,922,066.55 and 368,393,364.90

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Solution

The fourth proportional to 613,281,377.70, 919,922,066.55 and 368,393,364.90 is: 552,590,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,281,377.70 : 919,922,066.55 = 368,393,364.90 : x
  2. Step 2: Convert to fraction form
    613,281,377.70/919,922,066.55 = 368,393,364.90/x
  3. Step 3: Cross multiply
    613,281,377.70x = 919,922,066.55 × 368,393,364.90
  4. Step 4: Simplify right side
    613,281,377.70x = 338,893,185,542,116,224
  5. Step 5: Solve for x
    x = 338,893,185,542,116,224/613,281,377.70
  6. Step 6: Final answer
    x = 552,590,047.35

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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.