Finding the Fourth Proportional to 283,778,216.37, 391,625,329.11 and 158,341,368.81
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Solution
The fourth proportional to 283,778,216.37, 391,625,329.11 and 158,341,368.81 is: 218,517,444.59
Step by Step Solution
- Step 1: Write the proportion equation
283,778,216.37 : 391,625,329.11 = 158,341,368.81 : x - Step 2: Convert to fraction form
283,778,216.37/391,625,329.11 = 158,341,368.81/x - Step 3: Cross multiply
283,778,216.37x = 391,625,329.11 × 158,341,368.81 - Step 4: Simplify right side
283,778,216.37x = 62,010,490,672,820,536 - Step 5: Solve for x
x = 62,010,490,672,820,536/283,778,216.37 - Step 6: Final answer
x = 218,517,444.59
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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.