Finding the Fourth Proportional to 516,228,830.87, 712,386,817.05 and 281,281,421.98
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Solution
The fourth proportional to 516,228,830.87, 712,386,817.05 and 281,281,421.98 is: 388,163,475.03
Step by Step Solution
- Step 1: Write the proportion equation
516,228,830.87 : 712,386,817.05 = 281,281,421.98 : x - Step 2: Convert to fraction form
516,228,830.87/712,386,817.05 = 281,281,421.98/x - Step 3: Cross multiply
516,228,830.87x = 712,386,817.05 × 281,281,421.98 - Step 4: Simplify right side
516,228,830.87x = 200,381,176,899,630,112 - Step 5: Solve for x
x = 200,381,176,899,630,112/516,228,830.87 - Step 6: Final answer
x = 388,163,475.03
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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.