Finding the Fourth Proportional to 411,211,985.68, 616,757,305.62 and 120,000,918.12
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Solution
The fourth proportional to 411,211,985.68, 616,757,305.62 and 120,000,918.12 is: 179,983,671.46
Step by Step Solution
- Step 1: Write the proportion equation
411,211,985.68 : 616,757,305.62 = 120,000,918.12 : x - Step 2: Convert to fraction form
411,211,985.68/616,757,305.62 = 120,000,918.12/x - Step 3: Cross multiply
411,211,985.68x = 616,757,305.62 × 120,000,918.12 - Step 4: Simplify right side
411,211,985.68x = 74,011,442,929,753,392 - Step 5: Solve for x
x = 74,011,442,929,753,392/411,211,985.68 - Step 6: Final answer
x = 179,983,671.46
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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.