Home / 65,920,392.90-90,961,779.60-36,143,205.75

Finding the Fourth Proportional to 65,920,392.90, 90,961,779.60 and 36,143,205.75

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Solution

The fourth proportional to 65,920,392.90, 90,961,779.60 and 36,143,205.75 is: 49,873,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,920,392.90 : 90,961,779.60 = 36,143,205.75 : x
  2. Step 2: Convert to fraction form
    65,920,392.90/90,961,779.60 = 36,143,205.75/x
  3. Step 3: Cross multiply
    65,920,392.90x = 90,961,779.60 × 36,143,205.75
  4. Step 4: Simplify right side
    65,920,392.90x = 3,287,650,315,468,952.50
  5. Step 5: Solve for x
    x = 3,287,650,315,468,952.50/65,920,392.90
  6. Step 6: Final answer
    x = 49,873,038.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.