Home / 81,666,800.40-122,500,200.60-63,172,653.60

Finding the Fourth Proportional to 81,666,800.40, 122,500,200.60 and 63,172,653.60

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Solution

The fourth proportional to 81,666,800.40, 122,500,200.60 and 63,172,653.60 is: 94,758,980.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,666,800.40 : 122,500,200.60 = 63,172,653.60 : x
  2. Step 2: Convert to fraction form
    81,666,800.40/122,500,200.60 = 63,172,653.60/x
  3. Step 3: Cross multiply
    81,666,800.40x = 122,500,200.60 × 63,172,653.60
  4. Step 4: Simplify right side
    81,666,800.40x = 7,738,662,738,434,312
  5. Step 5: Solve for x
    x = 7,738,662,738,434,312/81,666,800.40
  6. Step 6: Final answer
    x = 94,758,980.40

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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.