Finding the Fourth Proportional to 1,212,801,672.83, 1,673,671,352.01 and 655,884,719.90
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Solution
The fourth proportional to 1,212,801,672.83, 1,673,671,352.01 and 655,884,719.90 is: 905,123,640.99
Step by Step Solution
- Step 1: Write the proportion equation
1,212,801,672.83 : 1,673,671,352.01 = 655,884,719.90 : x - Step 2: Convert to fraction form
1,212,801,672.83/1,673,671,352.01 = 655,884,719.90/x - Step 3: Cross multiply
1,212,801,672.83x = 1,673,671,352.01 × 655,884,719.90 - Step 4: Simplify right side
1,212,801,672.83x = 1,097,735,465,909,364,736 - Step 5: Solve for x
x = 1,097,735,465,909,364,736/1,212,801,672.83 - Step 6: Final answer
x = 905,123,640.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.