Finding the Fourth Proportional to 121,125,006.30, 181,687,509.45 and 70,106,670.30
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Solution
The fourth proportional to 121,125,006.30, 181,687,509.45 and 70,106,670.30 is: 105,160,005.45
Step by Step Solution
- Step 1: Write the proportion equation
121,125,006.30 : 181,687,509.45 = 70,106,670.30 : x - Step 2: Convert to fraction form
121,125,006.30/181,687,509.45 = 70,106,670.30/x - Step 3: Cross multiply
121,125,006.30x = 181,687,509.45 × 70,106,670.30 - Step 4: Simplify right side
121,125,006.30x = 12,737,506,322,639,282 - Step 5: Solve for x
x = 12,737,506,322,639,282/121,125,006.30 - Step 6: Final answer
x = 105,160,005.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.