Finding the Fourth Proportional to 165,280,603.65, 247,920,905.48 and 147,424,186.05
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Solution
The fourth proportional to 165,280,603.65, 247,920,905.48 and 147,424,186.05 is: 221,136,279.08
Step by Step Solution
- Step 1: Write the proportion equation
165,280,603.65 : 247,920,905.48 = 147,424,186.05 : x - Step 2: Convert to fraction form
165,280,603.65/247,920,905.48 = 147,424,186.05/x - Step 3: Cross multiply
165,280,603.65x = 247,920,905.48 × 147,424,186.05 - Step 4: Simplify right side
165,280,603.65x = 36,549,537,694,430,864 - Step 5: Solve for x
x = 36,549,537,694,430,864/165,280,603.65 - Step 6: Final answer
x = 221,136,279.08
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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.