Finding the Fourth Proportional to 1,306,692,840.74, 1,803,236,379.66 and 711,977,325.08
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Solution
The fourth proportional to 1,306,692,840.74, 1,803,236,379.66 and 711,977,325.08 is: 982,528,849.97
Step by Step Solution
- Step 1: Write the proportion equation
1,306,692,840.74 : 1,803,236,379.66 = 711,977,325.08 : x - Step 2: Convert to fraction form
1,306,692,840.74/1,803,236,379.66 = 711,977,325.08/x - Step 3: Cross multiply
1,306,692,840.74x = 1,803,236,379.66 × 711,977,325.08 - Step 4: Simplify right side
1,306,692,840.74x = 1,283,863,414,068,254,208 - Step 5: Solve for x
x = 1,283,863,414,068,254,208/1,306,692,840.74 - Step 6: Final answer
x = 982,528,849.97
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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.