Finding the Fourth Proportional to 124,689,968.10, 187,034,952.15 and 38,420,691.30
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Solution
The fourth proportional to 124,689,968.10, 187,034,952.15 and 38,420,691.30 is: 57,631,036.95
Step by Step Solution
- Step 1: Write the proportion equation
124,689,968.10 : 187,034,952.15 = 38,420,691.30 : x - Step 2: Convert to fraction form
124,689,968.10/187,034,952.15 = 38,420,691.30/x - Step 3: Cross multiply
124,689,968.10x = 187,034,952.15 × 38,420,691.30 - Step 4: Simplify right side
124,689,968.10x = 7,186,012,158,865,421 - Step 5: Solve for x
x = 7,186,012,158,865,421/124,689,968.10 - Step 6: Final answer
x = 57,631,036.95
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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.