Home / 1,213,056,018.40-1,819,584,027.60-804,573,407.20

Finding the Fourth Proportional to 1,213,056,018.40, 1,819,584,027.60 and 804,573,407.20

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Solution

The fourth proportional to 1,213,056,018.40, 1,819,584,027.60 and 804,573,407.20 is: 1,206,860,110.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,056,018.40 : 1,819,584,027.60 = 804,573,407.20 : x
  2. Step 2: Convert to fraction form
    1,213,056,018.40/1,819,584,027.60 = 804,573,407.20/x
  3. Step 3: Cross multiply
    1,213,056,018.40x = 1,819,584,027.60 × 804,573,407.20
  4. Step 4: Simplify right side
    1,213,056,018.40x = 1,463,988,920,772,830,976
  5. Step 5: Solve for x
    x = 1,463,988,920,772,830,976/1,213,056,018.40
  6. Step 6: Final answer
    x = 1,206,860,110.80

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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.