Finding the Fourth Proportional to 221,439,698.15, 305,596,062.62 and 127,353,908.72
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Solution
The fourth proportional to 221,439,698.15, 305,596,062.62 and 127,353,908.72 is: 175,753,730.66
Step by Step Solution
- Step 1: Write the proportion equation
221,439,698.15 : 305,596,062.62 = 127,353,908.72 : x - Step 2: Convert to fraction form
221,439,698.15/305,596,062.62 = 127,353,908.72/x - Step 3: Cross multiply
221,439,698.15x = 305,596,062.62 × 127,353,908.72 - Step 4: Simplify right side
221,439,698.15x = 38,918,853,064,703,680 - Step 5: Solve for x
x = 38,918,853,064,703,680/221,439,698.15 - Step 6: Final answer
x = 175,753,730.66
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.