Finding the Fourth Proportional to 420,704,900.54, 630,858,733.52 and 245,878,088.84
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Solution
The fourth proportional to 420,704,900.54, 630,858,733.52 and 245,878,088.84 is: 368,701,052.75
Step by Step Solution
- Step 1: Write the proportion equation
420,704,900.54 : 630,858,733.52 = 245,878,088.84 : x - Step 2: Convert to fraction form
420,704,900.54/630,858,733.52 = 245,878,088.84/x - Step 3: Cross multiply
420,704,900.54x = 630,858,733.52 × 245,878,088.84 - Step 4: Simplify right side
420,704,900.54x = 155,114,339,725,920,448 - Step 5: Solve for x
x = 155,114,339,725,920,448/420,704,900.54 - Step 6: Final answer
x = 368,701,052.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.