Home / 83,133,037.70-124,699,556.55-81,715,861.70

Finding the Fourth Proportional to 83,133,037.70, 124,699,556.55 and 81,715,861.70

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Solution

The fourth proportional to 83,133,037.70, 124,699,556.55 and 81,715,861.70 is: 122,573,792.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,133,037.70 : 124,699,556.55 = 81,715,861.70 : x
  2. Step 2: Convert to fraction form
    83,133,037.70/124,699,556.55 = 81,715,861.70/x
  3. Step 3: Cross multiply
    83,133,037.70x = 124,699,556.55 × 81,715,861.70
  4. Step 4: Simplify right side
    83,133,037.70x = 10,189,931,717,091,130
  5. Step 5: Solve for x
    x = 10,189,931,717,091,130/83,133,037.70
  6. Step 6: Final answer
    x = 122,573,792.55

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1.5x scale

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.