Finding the Fourth Proportional to 121,717,913.58, 167,974,782.93 and 66,713,911.02
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Solution
The fourth proportional to 121,717,913.58, 167,974,782.93 and 66,713,911.02 is: 92,067,423.70
Step by Step Solution
- Step 1: Write the proportion equation
121,717,913.58 : 167,974,782.93 = 66,713,911.02 : x - Step 2: Convert to fraction form
121,717,913.58/167,974,782.93 = 66,713,911.02/x - Step 3: Cross multiply
121,717,913.58x = 167,974,782.93 × 66,713,911.02 - Step 4: Simplify right side
121,717,913.58x = 11,206,254,722,248,988 - Step 5: Solve for x
x = 11,206,254,722,248,988/121,717,913.58 - Step 6: Final answer
x = 92,067,423.70
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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.