Finding the Fourth Proportional to 328,720,638.08, 453,641,823.67 and 187,589,048.66
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Solution
The fourth proportional to 328,720,638.08, 453,641,823.67 and 187,589,048.66 is: 258,877,077.61
Step by Step Solution
- Step 1: Write the proportion equation
328,720,638.08 : 453,641,823.67 = 187,589,048.66 : x - Step 2: Convert to fraction form
328,720,638.08/453,641,823.67 = 187,589,048.66/x - Step 3: Cross multiply
328,720,638.08x = 453,641,823.67 × 187,589,048.66 - Step 4: Simplify right side
328,720,638.08x = 85,098,238,136,210,128 - Step 5: Solve for x
x = 85,098,238,136,210,128/328,720,638.08 - Step 6: Final answer
x = 258,877,077.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.