Home / 1,229,064,312.80-1,843,596,469.20-1,208,656,978.40

Finding the Fourth Proportional to 1,229,064,312.80, 1,843,596,469.20 and 1,208,656,978.40

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Solution

The fourth proportional to 1,229,064,312.80, 1,843,596,469.20 and 1,208,656,978.40 is: 1,812,985,467.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,064,312.80 : 1,843,596,469.20 = 1,208,656,978.40 : x
  2. Step 2: Convert to fraction form
    1,229,064,312.80/1,843,596,469.20 = 1,208,656,978.40/x
  3. Step 3: Cross multiply
    1,229,064,312.80x = 1,843,596,469.20 × 1,208,656,978.40
  4. Step 4: Simplify right side
    1,229,064,312.80x = 2,228,275,737,852,180,992
  5. Step 5: Solve for x
    x = 2,228,275,737,852,180,992/1,229,064,312.80
  6. Step 6: Final answer
    x = 1,812,985,467.60

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Double scale
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1.5x scale

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.