Home / 141,427,733.19-195,168,861.69-78,702,756.77

Finding the Fourth Proportional to 141,427,733.19, 195,168,861.69 and 78,702,756.77

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Solution

The fourth proportional to 141,427,733.19, 195,168,861.69 and 78,702,756.77 is: 108,609,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,427,733.19 : 195,168,861.69 = 78,702,756.77 : x
  2. Step 2: Convert to fraction form
    141,427,733.19/195,168,861.69 = 78,702,756.77/x
  3. Step 3: Cross multiply
    141,427,733.19x = 195,168,861.69 × 78,702,756.77
  4. Step 4: Simplify right side
    141,427,733.19x = 15,360,327,449,689,996
  5. Step 5: Solve for x
    x = 15,360,327,449,689,996/141,427,733.19
  6. Step 6: Final answer
    x = 108,609,019.63

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1.5x scale

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.