Finding the Fourth Proportional to 1,309,174,615.05, 1,806,699,235.08 and 714,497,265.48
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Solution
The fourth proportional to 1,309,174,615.05, 1,806,699,235.08 and 714,497,265.48 is: 986,027,110.65
Step by Step Solution
- Step 1: Write the proportion equation
1,309,174,615.05 : 1,806,699,235.08 = 714,497,265.48 : x - Step 2: Convert to fraction form
1,309,174,615.05/1,806,699,235.08 = 714,497,265.48/x - Step 3: Cross multiply
1,309,174,615.05x = 1,806,699,235.08 × 714,497,265.48 - Step 4: Simplify right side
1,309,174,615.05x = 1,290,881,663,009,467,648 - Step 5: Solve for x
x = 1,290,881,663,009,467,648/1,309,174,615.05 - Step 6: Final answer
x = 986,027,110.65
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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.