Finding the Fourth Proportional to 153,829,779.27, 212,251,159.24 and 91,074,717.01
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Solution
The fourth proportional to 153,829,779.27, 212,251,159.24 and 91,074,717.01 is: 125,663,017.62
Step by Step Solution
- Step 1: Write the proportion equation
153,829,779.27 : 212,251,159.24 = 91,074,717.01 : x - Step 2: Convert to fraction form
153,829,779.27/212,251,159.24 = 91,074,717.01/x - Step 3: Cross multiply
153,829,779.27x = 212,251,159.24 × 91,074,717.01 - Step 4: Simplify right side
153,829,779.27x = 19,330,714,262,827,448 - Step 5: Solve for x
x = 19,330,714,262,827,448/153,829,779.27 - Step 6: Final answer
x = 125,663,017.62
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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.