Home / 190,191,521.07-285,323,121.38-72,051,668.55

Finding the Fourth Proportional to 190,191,521.07, 285,323,121.38 and 72,051,668.55

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Solution

The fourth proportional to 190,191,521.07, 285,323,121.38 and 72,051,668.55 is: 108,091,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,191,521.07 : 285,323,121.38 = 72,051,668.55 : x
  2. Step 2: Convert to fraction form
    190,191,521.07/285,323,121.38 = 72,051,668.55/x
  3. Step 3: Cross multiply
    190,191,521.07x = 285,323,121.38 × 72,051,668.55
  4. Step 4: Simplify right side
    190,191,521.07x = 20,558,006,971,503,308
  5. Step 5: Solve for x
    x = 20,558,006,971,503,308/190,191,521.07
  6. Step 6: Final answer
    x = 108,091,080.27

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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.