Finding the Fourth Proportional to 359,221,521.80, 538,832,282.70 and 155,148,177.80
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Solution
The fourth proportional to 359,221,521.80, 538,832,282.70 and 155,148,177.80 is: 232,722,266.70
Step by Step Solution
- Step 1: Write the proportion equation
359,221,521.80 : 538,832,282.70 = 155,148,177.80 : x - Step 2: Convert to fraction form
359,221,521.80/538,832,282.70 = 155,148,177.80/x - Step 3: Cross multiply
359,221,521.80x = 538,832,282.70 × 155,148,177.80 - Step 4: Simplify right side
359,221,521.80x = 83,598,846,800,719,472 - Step 5: Solve for x
x = 83,598,846,800,719,472/359,221,521.80 - Step 6: Final answer
x = 232,722,266.70
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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.