Home / 1,490,567,859.89-2,056,977,430.82-821,511,307.98

Finding the Fourth Proportional to 1,490,567,859.89, 2,056,977,430.82 and 821,511,307.98

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Solution

The fourth proportional to 1,490,567,859.89, 2,056,977,430.82 and 821,511,307.98 is: 1,133,682,179.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,567,859.89 : 2,056,977,430.82 = 821,511,307.98 : x
  2. Step 2: Convert to fraction form
    1,490,567,859.89/2,056,977,430.82 = 821,511,307.98/x
  3. Step 3: Cross multiply
    1,490,567,859.89x = 2,056,977,430.82 × 821,511,307.98
  4. Step 4: Simplify right side
    1,490,567,859.89x = 1,689,830,219,674,170,624
  5. Step 5: Solve for x
    x = 1,689,830,219,674,170,624/1,490,567,859.89
  6. Step 6: Final answer
    x = 1,133,682,179.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.