Finding the Fourth Proportional to 256,406,305.58, 353,841,014.39 and 138,931,543.17
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Solution
The fourth proportional to 256,406,305.58, 353,841,014.39 and 138,931,543.17 is: 191,725,699.00
Step by Step Solution
- Step 1: Write the proportion equation
256,406,305.58 : 353,841,014.39 = 138,931,543.17 : x - Step 2: Convert to fraction form
256,406,305.58/353,841,014.39 = 138,931,543.17/x - Step 3: Cross multiply
256,406,305.58x = 353,841,014.39 × 138,931,543.17 - Step 4: Simplify right side
256,406,305.58x = 49,159,678,165,346,216 - Step 5: Solve for x
x = 49,159,678,165,346,216/256,406,305.58 - Step 6: Final answer
x = 191,725,699.00
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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.