Finding the Fourth Proportional to 516,228,829.37, 712,386,814.99 and 281,281,420.48
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Solution
The fourth proportional to 516,228,829.37, 712,386,814.99 and 281,281,420.48 is: 388,163,472.95
Step by Step Solution
- Step 1: Write the proportion equation
516,228,829.37 : 712,386,814.99 = 281,281,420.48 : x - Step 2: Convert to fraction form
516,228,829.37/712,386,814.99 = 281,281,420.48/x - Step 3: Cross multiply
516,228,829.37x = 712,386,814.99 × 281,281,420.48 - Step 4: Simplify right side
516,228,829.37x = 200,381,175,246,641,824 - Step 5: Solve for x
x = 200,381,175,246,641,824/516,228,829.37 - Step 6: Final answer
x = 388,163,472.95
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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.