Finding the Fourth Proportional to 1,306,935,635.31, 1,803,518,698.28 and 712,207,443.96
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Solution
The fourth proportional to 1,306,935,635.31, 1,803,518,698.28 and 712,207,443.96 is: 982,817,674.82
Step by Step Solution
- Step 1: Write the proportion equation
1,306,935,635.31 : 1,803,518,698.28 = 712,207,443.96 : x - Step 2: Convert to fraction form
1,306,935,635.31/1,803,518,698.28 = 712,207,443.96/x - Step 3: Cross multiply
1,306,935,635.31x = 1,803,518,698.28 × 712,207,443.96 - Step 4: Simplify right side
1,306,935,635.31x = 1,284,479,442,232,504,320 - Step 5: Solve for x
x = 1,284,479,442,232,504,320/1,306,935,635.31 - Step 6: Final answer
x = 982,817,674.82
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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.