Finding the Fourth Proportional to 552,599,753.90, 762,931,816.58 and 351,769,943.80
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Solution
The fourth proportional to 552,599,753.90, 762,931,816.58 and 351,769,943.80 is: 485,661,602.90
Step by Step Solution
- Step 1: Write the proportion equation
552,599,753.90 : 762,931,816.58 = 351,769,943.80 : x - Step 2: Convert to fraction form
552,599,753.90/762,931,816.58 = 351,769,943.80/x - Step 3: Cross multiply
552,599,753.90x = 762,931,816.58 × 351,769,943.80 - Step 4: Simplify right side
552,599,753.90x = 268,376,482,241,578,528 - Step 5: Solve for x
x = 268,376,482,241,578,528/552,599,753.90 - Step 6: Final answer
x = 485,661,602.90
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1.5x scale
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.