Finding the Fourth Proportional to 381,266,225.56, 571,638,252.34 and 194,157,980.12
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Solution
The fourth proportional to 381,266,225.56, 571,638,252.34 and 194,157,980.12 is: 291,104,013.40
Step by Step Solution
- Step 1: Write the proportion equation
381,266,225.56 : 571,638,252.34 = 194,157,980.12 : x - Step 2: Convert to fraction form
381,266,225.56/571,638,252.34 = 194,157,980.12/x - Step 3: Cross multiply
381,266,225.56x = 571,638,252.34 × 194,157,980.12 - Step 4: Simplify right side
381,266,225.56x = 110,988,128,433,661,280 - Step 5: Solve for x
x = 110,988,128,433,661,280/381,266,225.56 - Step 6: Final answer
x = 291,104,013.40
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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.