Home / 1,140,325,427.81-1,573,649,090.38-618,804,659.81

Finding the Fourth Proportional to 1,140,325,427.81, 1,573,649,090.38 and 618,804,659.81

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Solution

The fourth proportional to 1,140,325,427.81, 1,573,649,090.38 and 618,804,659.81 is: 853,950,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,325,427.81 : 1,573,649,090.38 = 618,804,659.81 : x
  2. Step 2: Convert to fraction form
    1,140,325,427.81/1,573,649,090.38 = 618,804,659.81/x
  3. Step 3: Cross multiply
    1,140,325,427.81x = 1,573,649,090.38 × 618,804,659.81
  4. Step 4: Simplify right side
    1,140,325,427.81x = 973,781,390,037,588,608
  5. Step 5: Solve for x
    x = 973,781,390,037,588,608/1,140,325,427.81
  6. Step 6: Final answer
    x = 853,950,430.54

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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.