Home / 642,071,323.20-963,106,984.80-157,397,131.20

Finding the Fourth Proportional to 642,071,323.20, 963,106,984.80 and 157,397,131.20

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Solution

The fourth proportional to 642,071,323.20, 963,106,984.80 and 157,397,131.20 is: 236,095,696.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,071,323.20 : 963,106,984.80 = 157,397,131.20 : x
  2. Step 2: Convert to fraction form
    642,071,323.20/963,106,984.80 = 157,397,131.20/x
  3. Step 3: Cross multiply
    642,071,323.20x = 963,106,984.80 × 157,397,131.20
  4. Step 4: Simplify right side
    642,071,323.20x = 151,590,276,446,201,984
  5. Step 5: Solve for x
    x = 151,590,276,446,201,984/642,071,323.20
  6. Step 6: Final answer
    x = 236,095,696.80

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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.