Finding the Fourth Proportional to 357,366,909.30, 536,050,363.95 and 321,087,203.70
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Solution
The fourth proportional to 357,366,909.30, 536,050,363.95 and 321,087,203.70 is: 481,630,805.55
Step by Step Solution
- Step 1: Write the proportion equation
357,366,909.30 : 536,050,363.95 = 321,087,203.70 : x - Step 2: Convert to fraction form
357,366,909.30/536,050,363.95 = 321,087,203.70/x - Step 3: Cross multiply
357,366,909.30x = 536,050,363.95 × 321,087,203.70 - Step 4: Simplify right side
357,366,909.30x = 172,118,912,403,072,768 - Step 5: Solve for x
x = 172,118,912,403,072,768/357,366,909.30 - Step 6: Final answer
x = 481,630,805.55
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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.