Finding the Fourth Proportional to 359,221,551.30, 538,832,326.95 and 155,148,207.30
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Solution
The fourth proportional to 359,221,551.30, 538,832,326.95 and 155,148,207.30 is: 232,722,310.95
Step by Step Solution
- Step 1: Write the proportion equation
359,221,551.30 : 538,832,326.95 = 155,148,207.30 : x - Step 2: Convert to fraction form
359,221,551.30/538,832,326.95 = 155,148,207.30/x - Step 3: Cross multiply
359,221,551.30x = 538,832,326.95 × 155,148,207.30 - Step 4: Simplify right side
359,221,551.30x = 83,598,869,561,579,984 - Step 5: Solve for x
x = 83,598,869,561,579,984/359,221,551.30 - Step 6: Final answer
x = 232,722,310.95
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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.