Home / 21,282,509-31,923,763.94-5,108,460.28

Finding the Fourth Proportional to 21,282,509, 31,923,763.94 and 5,108,460.28

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Solution

The fourth proportional to 21,282,509, 31,923,763.94 and 5,108,460.28 is: 7,662,690.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282,509 : 31,923,763.94 = 5,108,460.28 : x
  2. Step 2: Convert to fraction form
    21,282,509/31,923,763.94 = 5,108,460.28/x
  3. Step 3: Cross multiply
    21,282,509x = 31,923,763.94 × 5,108,460.28
  4. Step 4: Simplify right side
    21,282,509x = 163,081,280,075,586.31
  5. Step 5: Solve for x
    x = 163,081,280,075,586.31/21,282,509
  6. Step 6: Final answer
    x = 7,662,690.53

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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.