Home / 79,261,984.80-118,892,977.20-21,763,130.40

Finding the Fourth Proportional to 79,261,984.80, 118,892,977.20 and 21,763,130.40

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Solution

The fourth proportional to 79,261,984.80, 118,892,977.20 and 21,763,130.40 is: 32,644,695.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261,984.80 : 118,892,977.20 = 21,763,130.40 : x
  2. Step 2: Convert to fraction form
    79,261,984.80/118,892,977.20 = 21,763,130.40/x
  3. Step 3: Cross multiply
    79,261,984.80x = 118,892,977.20 × 21,763,130.40
  4. Step 4: Simplify right side
    79,261,984.80x = 2,587,483,366,447,827
  5. Step 5: Solve for x
    x = 2,587,483,366,447,827/79,261,984.80
  6. Step 6: Final answer
    x = 32,644,695.60

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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.