Home / 38,515,729.24-53,152,348.53-20,875,195.18

Finding the Fourth Proportional to 38,515,729.24, 53,152,348.53 and 20,875,195.18

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Solution

The fourth proportional to 38,515,729.24, 53,152,348.53 and 20,875,195.18 is: 28,808,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515,729.24 : 53,152,348.53 = 20,875,195.18 : x
  2. Step 2: Convert to fraction form
    38,515,729.24/53,152,348.53 = 20,875,195.18/x
  3. Step 3: Cross multiply
    38,515,729.24x = 53,152,348.53 × 20,875,195.18
  4. Step 4: Simplify right side
    38,515,729.24x = 1,109,565,649,839,136.12
  5. Step 5: Solve for x
    x = 1,109,565,649,839,136.12/38,515,729.24
  6. Step 6: Final answer
    x = 28,808,117.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.