Finding the Fourth Proportional to 851,531,916.48, 1,175,111,840.93 and 475,184,545.08
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Solution
The fourth proportional to 851,531,916.48, 1,175,111,840.93 and 475,184,545.08 is: 655,753,442.41
Step by Step Solution
- Step 1: Write the proportion equation
851,531,916.48 : 1,175,111,840.93 = 475,184,545.08 : x - Step 2: Convert to fraction form
851,531,916.48/1,175,111,840.93 = 475,184,545.08/x - Step 3: Cross multiply
851,531,916.48x = 1,175,111,840.93 × 475,184,545.08 - Step 4: Simplify right side
851,531,916.48x = 558,394,985,550,443,392 - Step 5: Solve for x
x = 558,394,985,550,443,392/851,531,916.48 - Step 6: Final answer
x = 655,753,442.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.