Home / 91,562,786.40-137,344,179.60-84,547,765.20

Finding the Fourth Proportional to 91,562,786.40, 137,344,179.60 and 84,547,765.20

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Solution

The fourth proportional to 91,562,786.40, 137,344,179.60 and 84,547,765.20 is: 126,821,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,562,786.40 : 137,344,179.60 = 84,547,765.20 : x
  2. Step 2: Convert to fraction form
    91,562,786.40/137,344,179.60 = 84,547,765.20/x
  3. Step 3: Cross multiply
    91,562,786.40x = 137,344,179.60 × 84,547,765.20
  4. Step 4: Simplify right side
    91,562,786.40x = 11,612,143,448,407,430
  5. Step 5: Solve for x
    x = 11,612,143,448,407,430/91,562,786.40
  6. Step 6: Final answer
    x = 126,821,647.80

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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.