Finding the Fourth Proportional to 420,662,319.84, 630,992,633.58 and 395,063,697.06
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Solution
The fourth proportional to 420,662,319.84, 630,992,633.58 and 395,063,697.06 is: 592,594,750.90
Step by Step Solution
- Step 1: Write the proportion equation
420,662,319.84 : 630,992,633.58 = 395,063,697.06 : x - Step 2: Convert to fraction form
420,662,319.84/630,992,633.58 = 395,063,697.06/x - Step 3: Cross multiply
420,662,319.84x = 630,992,633.58 × 395,063,697.06 - Step 4: Simplify right side
420,662,319.84x = 249,282,282,639,740,736 - Step 5: Solve for x
x = 249,282,282,639,740,736/420,662,319.84 - Step 6: Final answer
x = 592,594,750.90
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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.