Finding the Fourth Proportional to 205,920,432.72, 284,175,746.52 and 121,153,468.68
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Solution
The fourth proportional to 205,920,432.72, 284,175,746.52 and 121,153,468.68 is: 167,195,051.75
Step by Step Solution
- Step 1: Write the proportion equation
205,920,432.72 : 284,175,746.52 = 121,153,468.68 : x - Step 2: Convert to fraction form
205,920,432.72/284,175,746.52 = 121,153,468.68/x - Step 3: Cross multiply
205,920,432.72x = 284,175,746.52 × 121,153,468.68 - Step 4: Simplify right side
205,920,432.72x = 34,428,877,405,626,440 - Step 5: Solve for x
x = 34,428,877,405,626,440/205,920,432.72 - Step 6: Final answer
x = 167,195,051.75
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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.