Finding the Fourth Proportional to 403,178,279.68, 604,855,619.52 and 130,576,602.88
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Solution
The fourth proportional to 403,178,279.68, 604,855,619.52 and 130,576,602.88 is: 195,893,469.49
Step by Step Solution
- Step 1: Write the proportion equation
403,178,279.68 : 604,855,619.52 = 130,576,602.88 : x - Step 2: Convert to fraction form
403,178,279.68/604,855,619.52 = 130,576,602.88/x - Step 3: Cross multiply
403,178,279.68x = 604,855,619.52 × 130,576,602.88 - Step 4: Simplify right side
403,178,279.68x = 78,979,992,029,799,408 - Step 5: Solve for x
x = 78,979,992,029,799,408/403,178,279.68 - Step 6: Final answer
x = 195,893,469.49
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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.