Home / 61,205,856.60-91,808,784.90-60,638,986.20

Finding the Fourth Proportional to 61,205,856.60, 91,808,784.90 and 60,638,986.20

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Solution

The fourth proportional to 61,205,856.60, 91,808,784.90 and 60,638,986.20 is: 90,958,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,205,856.60 : 91,808,784.90 = 60,638,986.20 : x
  2. Step 2: Convert to fraction form
    61,205,856.60/91,808,784.90 = 60,638,986.20/x
  3. Step 3: Cross multiply
    61,205,856.60x = 91,808,784.90 × 60,638,986.20
  4. Step 4: Simplify right side
    61,205,856.60x = 5,567,191,640,589,869
  5. Step 5: Solve for x
    x = 5,567,191,640,589,869/61,205,856.60
  6. Step 6: Final answer
    x = 90,958,479.30

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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.