Home / 642,071,324.20-963,106,986.30-157,397,132.20

Finding the Fourth Proportional to 642,071,324.20, 963,106,986.30 and 157,397,132.20

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Solution

The fourth proportional to 642,071,324.20, 963,106,986.30 and 157,397,132.20 is: 236,095,698.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,071,324.20 : 963,106,986.30 = 157,397,132.20 : x
  2. Step 2: Convert to fraction form
    642,071,324.20/963,106,986.30 = 157,397,132.20/x
  3. Step 3: Cross multiply
    642,071,324.20x = 963,106,986.30 × 157,397,132.20
  4. Step 4: Simplify right side
    642,071,324.20x = 151,590,277,645,404,672
  5. Step 5: Solve for x
    x = 151,590,277,645,404,672/642,071,324.20
  6. Step 6: Final answer
    x = 236,095,698.30

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Double scale
Find fourth proportional to 642,071,325.20, 963,106,987.80 and 157,397,133.20
Similar ratio
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1.5x scale

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.