Finding the Fourth Proportional to 458,487,576.26, 686,439,888.72 and 411,997,117.58
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Solution
The fourth proportional to 458,487,576.26, 686,439,888.72 and 411,997,117.58 is: 616,835,155.82
Step by Step Solution
- Step 1: Write the proportion equation
458,487,576.26 : 686,439,888.72 = 411,997,117.58 : x - Step 2: Convert to fraction form
458,487,576.26/686,439,888.72 = 411,997,117.58/x - Step 3: Cross multiply
458,487,576.26x = 686,439,888.72 × 411,997,117.58 - Step 4: Simplify right side
458,487,576.26x = 282,811,255,544,575,968 - Step 5: Solve for x
x = 282,811,255,544,575,968/458,487,576.26 - Step 6: Final answer
x = 616,835,155.82
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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.