Finding the Fourth Proportional to 457,312,013.84, 685,620,900.12 and 235,744,594.40
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Solution
The fourth proportional to 457,312,013.84, 685,620,900.12 and 235,744,594.40 is: 353,437,950.72
Step by Step Solution
- Step 1: Write the proportion equation
457,312,013.84 : 685,620,900.12 = 235,744,594.40 : x - Step 2: Convert to fraction form
457,312,013.84/685,620,900.12 = 235,744,594.40/x - Step 3: Cross multiply
457,312,013.84x = 685,620,900.12 × 235,744,594.40 - Step 4: Simplify right side
457,312,013.84x = 161,631,421,010,952,320 - Step 5: Solve for x
x = 161,631,421,010,952,320/457,312,013.84 - Step 6: Final answer
x = 353,437,950.72
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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.