Finding the Fourth Proportional to 408,657,972.62, 564,269,327.97 and 329,020,061.42
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Solution
The fourth proportional to 408,657,972.62, 564,269,327.97 and 329,020,061.42 is: 454,306,391.62
Step by Step Solution
- Step 1: Write the proportion equation
408,657,972.62 : 564,269,327.97 = 329,020,061.42 : x - Step 2: Convert to fraction form
408,657,972.62/564,269,327.97 = 329,020,061.42/x - Step 3: Cross multiply
408,657,972.62x = 564,269,327.97 × 329,020,061.42 - Step 4: Simplify right side
408,657,972.62x = 185,655,928,946,111,552 - Step 5: Solve for x
x = 185,655,928,946,111,552/408,657,972.62 - Step 6: Final answer
x = 454,306,391.62
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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.