Home / 201,447,317.20-302,170,975.80-72,059,148.40

Finding the Fourth Proportional to 201,447,317.20, 302,170,975.80 and 72,059,148.40

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Solution

The fourth proportional to 201,447,317.20, 302,170,975.80 and 72,059,148.40 is: 108,088,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,447,317.20 : 302,170,975.80 = 72,059,148.40 : x
  2. Step 2: Convert to fraction form
    201,447,317.20/302,170,975.80 = 72,059,148.40/x
  3. Step 3: Cross multiply
    201,447,317.20x = 302,170,975.80 × 72,059,148.40
  4. Step 4: Simplify right side
    201,447,317.20x = 21,774,183,187,345,012
  5. Step 5: Solve for x
    x = 21,774,183,187,345,012/201,447,317.20
  6. Step 6: Final answer
    x = 108,088,722.60

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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.