Home / 28,132,384.60-42,194,429.70-7,939,667.80

Finding the Fourth Proportional to 28,132,384.60, 42,194,429.70 and 7,939,667.80

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Solution

The fourth proportional to 28,132,384.60, 42,194,429.70 and 7,939,667.80 is: 11,908,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132,384.60 : 42,194,429.70 = 7,939,667.80 : x
  2. Step 2: Convert to fraction form
    28,132,384.60/42,194,429.70 = 7,939,667.80/x
  3. Step 3: Cross multiply
    28,132,384.60x = 42,194,429.70 × 7,939,667.80
  4. Step 4: Simplify right side
    28,132,384.60x = 335,009,754,828,453.69
  5. Step 5: Solve for x
    x = 335,009,754,828,453.69/28,132,384.60
  6. Step 6: Final answer
    x = 11,908,331.26

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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.