Finding the Fourth Proportional to 1,309,174,652.52, 1,806,699,286.78 and 714,497,302.95
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Solution
The fourth proportional to 1,309,174,652.52, 1,806,699,286.78 and 714,497,302.95 is: 986,027,162.35
Step by Step Solution
- Step 1: Write the proportion equation
1,309,174,652.52 : 1,806,699,286.78 = 714,497,302.95 : x - Step 2: Convert to fraction form
1,309,174,652.52/1,806,699,286.78 = 714,497,302.95/x - Step 3: Cross multiply
1,309,174,652.52x = 1,806,699,286.78 × 714,497,302.95 - Step 4: Simplify right side
1,309,174,652.52x = 1,290,881,767,645,998,592 - Step 5: Solve for x
x = 1,290,881,767,645,998,592/1,309,174,652.52 - Step 6: Final answer
x = 986,027,162.35
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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.