Finding the Fourth Proportional to 1,306,935,630.79, 1,803,518,692.07 and 712,207,439.44
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Solution
The fourth proportional to 1,306,935,630.79, 1,803,518,692.07 and 712,207,439.44 is: 982,817,668.59
Step by Step Solution
- Step 1: Write the proportion equation
1,306,935,630.79 : 1,803,518,692.07 = 712,207,439.44 : x - Step 2: Convert to fraction form
1,306,935,630.79/1,803,518,692.07 = 712,207,439.44/x - Step 3: Cross multiply
1,306,935,630.79x = 1,803,518,692.07 × 712,207,439.44 - Step 4: Simplify right side
1,306,935,630.79x = 1,284,479,429,653,282,816 - Step 5: Solve for x
x = 1,284,479,429,653,282,816/1,306,935,630.79 - Step 6: Final answer
x = 982,817,668.59
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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.