Finding the Fourth Proportional to 698,031,073.62, 963,282,646.62 and 384,770,518.97
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Solution
The fourth proportional to 698,031,073.62, 963,282,646.62 and 384,770,518.97 is: 530,983,186.65
Step by Step Solution
- Step 1: Write the proportion equation
698,031,073.62 : 963,282,646.62 = 384,770,518.97 : x - Step 2: Convert to fraction form
698,031,073.62/963,282,646.62 = 384,770,518.97/x - Step 3: Cross multiply
698,031,073.62x = 963,282,646.62 × 384,770,518.97 - Step 4: Simplify right side
698,031,073.62x = 370,642,763,849,956,096 - Step 5: Solve for x
x = 370,642,763,849,956,096/698,031,073.62 - Step 6: Final answer
x = 530,983,186.65
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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.