Home / 217,218,669.40-325,828,004.10-148,343,915.80

Finding the Fourth Proportional to 217,218,669.40, 325,828,004.10 and 148,343,915.80

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Solution

The fourth proportional to 217,218,669.40, 325,828,004.10 and 148,343,915.80 is: 222,515,873.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,218,669.40 : 325,828,004.10 = 148,343,915.80 : x
  2. Step 2: Convert to fraction form
    217,218,669.40/325,828,004.10 = 148,343,915.80/x
  3. Step 3: Cross multiply
    217,218,669.40x = 325,828,004.10 × 148,343,915.80
  4. Step 4: Simplify right side
    217,218,669.40x = 48,334,602,005,492,464
  5. Step 5: Solve for x
    x = 48,334,602,005,492,464/217,218,669.40
  6. Step 6: Final answer
    x = 222,515,873.70

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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.