Finding the Fourth Proportional to 191,590,775.70, 286,336,482.86 and 139,884,393.12
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Solution
The fourth proportional to 191,590,775.70, 286,336,482.86 and 139,884,393.12 is: 209,060,196.07
Step by Step Solution
- Step 1: Write the proportion equation
191,590,775.70 : 286,336,482.86 = 139,884,393.12 : x - Step 2: Convert to fraction form
191,590,775.70/286,336,482.86 = 139,884,393.12/x - Step 3: Cross multiply
191,590,775.70x = 286,336,482.86 × 139,884,393.12 - Step 4: Simplify right side
191,590,775.70x = 40,054,005,132,286,960 - Step 5: Solve for x
x = 40,054,005,132,286,960/191,590,775.70 - Step 6: Final answer
x = 209,060,196.07
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.