Home / 129,085,378.38-193,668,999.74-46,085,350.22

Finding the Fourth Proportional to 129,085,378.38, 193,668,999.74 and 46,085,350.22

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Solution

The fourth proportional to 129,085,378.38, 193,668,999.74 and 46,085,350.22 is: 69,142,638.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,085,378.38 : 193,668,999.74 = 46,085,350.22 : x
  2. Step 2: Convert to fraction form
    129,085,378.38/193,668,999.74 = 46,085,350.22/x
  3. Step 3: Cross multiply
    129,085,378.38x = 193,668,999.74 × 46,085,350.22
  4. Step 4: Simplify right side
    129,085,378.38x = 8,925,303,679,774,989
  5. Step 5: Solve for x
    x = 8,925,303,679,774,989/129,085,378.38
  6. Step 6: Final answer
    x = 69,142,638.71

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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.