Finding the Fourth Proportional to 353,034,208.34, 487,191,615.12 and 194,282,595.75
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Solution
The fourth proportional to 353,034,208.34, 487,191,615.12 and 194,282,595.75 is: 268,112,407.75
Step by Step Solution
- Step 1: Write the proportion equation
353,034,208.34 : 487,191,615.12 = 194,282,595.75 : x - Step 2: Convert to fraction form
353,034,208.34/487,191,615.12 = 194,282,595.75/x - Step 3: Cross multiply
353,034,208.34x = 487,191,615.12 × 194,282,595.75 - Step 4: Simplify right side
353,034,208.34x = 94,652,851,613,148,544 - Step 5: Solve for x
x = 94,652,851,613,148,544/353,034,208.34 - Step 6: Final answer
x = 268,112,407.75
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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.