Home / 85,315,820.20-127,973,730.30-21,490,412.20

Finding the Fourth Proportional to 85,315,820.20, 127,973,730.30 and 21,490,412.20

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Solution

The fourth proportional to 85,315,820.20, 127,973,730.30 and 21,490,412.20 is: 32,235,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,315,820.20 : 127,973,730.30 = 21,490,412.20 : x
  2. Step 2: Convert to fraction form
    85,315,820.20/127,973,730.30 = 21,490,412.20/x
  3. Step 3: Cross multiply
    85,315,820.20x = 127,973,730.30 × 21,490,412.20
  4. Step 4: Simplify right side
    85,315,820.20x = 2,750,208,214,918,629.50
  5. Step 5: Solve for x
    x = 2,750,208,214,918,629.50/85,315,820.20
  6. Step 6: Final answer
    x = 32,235,618.30

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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.