Finding the Fourth Proportional to 1,237,215,607.76, 1,707,418,829.60 and 767,468,281.26
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Solution
The fourth proportional to 1,237,215,607.76, 1,707,418,829.60 and 767,468,281.26 is: 1,059,144,248.04
Step by Step Solution
- Step 1: Write the proportion equation
1,237,215,607.76 : 1,707,418,829.60 = 767,468,281.26 : x - Step 2: Convert to fraction form
1,237,215,607.76/1,707,418,829.60 = 767,468,281.26/x - Step 3: Cross multiply
1,237,215,607.76x = 1,707,418,829.60 × 767,468,281.26 - Step 4: Simplify right side
1,237,215,607.76x = 1,310,389,794,544,072,704 - Step 5: Solve for x
x = 1,310,389,794,544,072,704/1,237,215,607.76 - Step 6: Final answer
x = 1,059,144,248.04
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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.