Finding the Fourth Proportional to 398,271,269.80, 597,406,904.70 and 372,762,101.80
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Solution
The fourth proportional to 398,271,269.80, 597,406,904.70 and 372,762,101.80 is: 559,143,152.70
Step by Step Solution
- Step 1: Write the proportion equation
398,271,269.80 : 597,406,904.70 = 372,762,101.80 : x - Step 2: Convert to fraction form
398,271,269.80/597,406,904.70 = 372,762,101.80/x - Step 3: Cross multiply
398,271,269.80x = 597,406,904.70 × 372,762,101.80 - Step 4: Simplify right side
398,271,269.80x = 222,690,653,425,804,320 - Step 5: Solve for x
x = 222,690,653,425,804,320/398,271,269.80 - Step 6: Final answer
x = 559,143,152.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.