Home / 85,661,106.40-128,229,219.60-47,204,898.40

Finding the Fourth Proportional to 85,661,106.40, 128,229,219.60 and 47,204,898.40

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Solution

The fourth proportional to 85,661,106.40, 128,229,219.60 and 47,204,898.40 is: 70,662,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,661,106.40 : 128,229,219.60 = 47,204,898.40 : x
  2. Step 2: Convert to fraction form
    85,661,106.40/128,229,219.60 = 47,204,898.40/x
  3. Step 3: Cross multiply
    85,661,106.40x = 128,229,219.60 × 47,204,898.40
  4. Step 4: Simplify right side
    85,661,106.40x = 6,053,047,283,129,288
  5. Step 5: Solve for x
    x = 6,053,047,283,129,288/85,661,106.40
  6. Step 6: Final answer
    x = 70,662,725.92

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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.