Home / 989,605,090.98-1,365,617,609.82-549,600,286.50

Finding the Fourth Proportional to 989,605,090.98, 1,365,617,609.82 and 549,600,286.50

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Solution

The fourth proportional to 989,605,090.98, 1,365,617,609.82 and 549,600,286.50 is: 758,427,615.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,605,090.98 : 1,365,617,609.82 = 549,600,286.50 : x
  2. Step 2: Convert to fraction form
    989,605,090.98/1,365,617,609.82 = 549,600,286.50/x
  3. Step 3: Cross multiply
    989,605,090.98x = 1,365,617,609.82 × 549,600,286.50
  4. Step 4: Simplify right side
    989,605,090.98x = 750,543,829,606,517,120
  5. Step 5: Solve for x
    x = 750,543,829,606,517,120/989,605,090.98
  6. Step 6: Final answer
    x = 758,427,615.67

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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.