Finding the Fourth Proportional to 249,138,330.48, 343,821,341.70 and 143,291,774.88
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Solution
The fourth proportional to 249,138,330.48, 343,821,341.70 and 143,291,774.88 is: 197,748,657.14
Step by Step Solution
- Step 1: Write the proportion equation
249,138,330.48 : 343,821,341.70 = 143,291,774.88 : x - Step 2: Convert to fraction form
249,138,330.48/343,821,341.70 = 143,291,774.88/x - Step 3: Cross multiply
249,138,330.48x = 343,821,341.70 × 143,291,774.88 - Step 4: Simplify right side
249,138,330.48x = 49,266,770,293,815,952 - Step 5: Solve for x
x = 49,266,770,293,815,952/249,138,330.48 - Step 6: Final answer
x = 197,748,657.14
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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.