Home / 21,260,816,656.25-31,868,948,374.27-9,906,632,762.56

Finding the Fourth Proportional to 21,260,816,656.25, 31,868,948,374.27 and 9,906,632,762.56

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Solution

The fourth proportional to 21,260,816,656.25, 31,868,948,374.27 and 9,906,632,762.56 is: 14,849,569,194.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260,816,656.25 : 31,868,948,374.27 = 9,906,632,762.56 : x
  2. Step 2: Convert to fraction form
    21,260,816,656.25/31,868,948,374.27 = 9,906,632,762.56/x
  3. Step 3: Cross multiply
    21,260,816,656.25x = 31,868,948,374.27 × 9,906,632,762.56
  4. Step 4: Simplify right side
    21,260,816,656.25x = 315,713,968,072,777,007,104
  5. Step 5: Solve for x
    x = 315,713,968,072,777,007,104/21,260,816,656.25
  6. Step 6: Final answer
    x = 14,849,569,194.70

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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.