Finding the Fourth Proportional to 298,927,472.68, 412,548,307.14 and 187,435,962.28
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Solution
The fourth proportional to 298,927,472.68, 412,548,307.14 and 187,435,962.28 is: 258,679,432.31
Step by Step Solution
- Step 1: Write the proportion equation
298,927,472.68 : 412,548,307.14 = 187,435,962.28 : x - Step 2: Convert to fraction form
298,927,472.68/412,548,307.14 = 187,435,962.28/x - Step 3: Cross multiply
298,927,472.68x = 412,548,307.14 × 187,435,962.28 - Step 4: Simplify right side
298,927,472.68x = 77,326,388,935,770,896 - Step 5: Solve for x
x = 77,326,388,935,770,896/298,927,472.68 - Step 6: Final answer
x = 258,679,432.31
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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.