Home / 156,771,253.68-216,332,074.26-87,152,395.20

Finding the Fourth Proportional to 156,771,253.68, 216,332,074.26 and 87,152,395.20

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Solution

The fourth proportional to 156,771,253.68, 216,332,074.26 and 87,152,395.20 is: 120,263,492.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,771,253.68 : 216,332,074.26 = 87,152,395.20 : x
  2. Step 2: Convert to fraction form
    156,771,253.68/216,332,074.26 = 87,152,395.20/x
  3. Step 3: Cross multiply
    156,771,253.68x = 216,332,074.26 × 87,152,395.20
  4. Step 4: Simplify right side
    156,771,253.68x = 18,853,858,430,343,268
  5. Step 5: Solve for x
    x = 18,853,858,430,343,268/156,771,253.68
  6. Step 6: Final answer
    x = 120,263,492.11

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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.