Home / 851,638,467.20-1,277,457,700.80-579,540,675.20

Finding the Fourth Proportional to 851,638,467.20, 1,277,457,700.80 and 579,540,675.20

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Solution

The fourth proportional to 851,638,467.20, 1,277,457,700.80 and 579,540,675.20 is: 869,311,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,638,467.20 : 1,277,457,700.80 = 579,540,675.20 : x
  2. Step 2: Convert to fraction form
    851,638,467.20/1,277,457,700.80 = 579,540,675.20/x
  3. Step 3: Cross multiply
    851,638,467.20x = 1,277,457,700.80 × 579,540,675.20
  4. Step 4: Simplify right side
    851,638,467.20x = 740,338,698,461,071,616
  5. Step 5: Solve for x
    x = 740,338,698,461,071,616/851,638,467.20
  6. Step 6: Final answer
    x = 869,311,012.80

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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.