Finding the Fourth Proportional to 1,137,267,138.24, 1,569,533,850.72 and 691,127,536.32
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Solution
The fourth proportional to 1,137,267,138.24, 1,569,533,850.72 and 691,127,536.32 is: 953,819,931.08
Step by Step Solution
- Step 1: Write the proportion equation
1,137,267,138.24 : 1,569,533,850.72 = 691,127,536.32 : x - Step 2: Convert to fraction form
1,137,267,138.24/1,569,533,850.72 = 691,127,536.32/x - Step 3: Cross multiply
1,137,267,138.24x = 1,569,533,850.72 × 691,127,536.32 - Step 4: Simplify right side
1,137,267,138.24x = 1,084,748,063,418,956,416 - Step 5: Solve for x
x = 1,084,748,063,418,956,416/1,137,267,138.24 - Step 6: Final answer
x = 953,819,931.08
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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.