Home / 421,845,309.96-632,536,782.16-130,631,585.08

Finding the Fourth Proportional to 421,845,309.96, 632,536,782.16 and 130,631,585.08

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Solution

The fourth proportional to 421,845,309.96, 632,536,782.16 and 130,631,585.08 is: 195,875,787.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,845,309.96 : 632,536,782.16 = 130,631,585.08 : x
  2. Step 2: Convert to fraction form
    421,845,309.96/632,536,782.16 = 130,631,585.08/x
  3. Step 3: Cross multiply
    421,845,309.96x = 632,536,782.16 × 130,631,585.08
  4. Step 4: Simplify right side
    421,845,309.96x = 82,629,282,474,963,456
  5. Step 5: Solve for x
    x = 82,629,282,474,963,456/421,845,309.96
  6. Step 6: Final answer
    x = 195,875,787.93

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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.