Finding the Fourth Proportional to 1,489,437,564.67, 2,055,423,741.81 and 863,269,202.06
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Solution
The fourth proportional to 1,489,437,564.67, 2,055,423,741.81 and 863,269,202.06 is: 1,191,311,442.37
Step by Step Solution
- Step 1: Write the proportion equation
1,489,437,564.67 : 2,055,423,741.81 = 863,269,202.06 : x - Step 2: Convert to fraction form
1,489,437,564.67/2,055,423,741.81 = 863,269,202.06/x - Step 3: Cross multiply
1,489,437,564.67x = 2,055,423,741.81 × 863,269,202.06 - Step 4: Simplify right side
1,489,437,564.67x = 1,774,384,013,487,497,984 - Step 5: Solve for x
x = 1,774,384,013,487,497,984/1,489,437,564.67 - Step 6: Final answer
x = 1,191,311,442.37
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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.