Finding the Fourth Proportional to 822,659,837.18, 1,135,270,587.94 and 470,243,462.54
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Solution
The fourth proportional to 822,659,837.18, 1,135,270,587.94 and 470,243,462.54 is: 648,935,985.53
Step by Step Solution
- Step 1: Write the proportion equation
822,659,837.18 : 1,135,270,587.94 = 470,243,462.54 : x - Step 2: Convert to fraction form
822,659,837.18/1,135,270,587.94 = 470,243,462.54/x - Step 3: Cross multiply
822,659,837.18x = 1,135,270,587.94 × 470,243,462.54 - Step 4: Simplify right side
822,659,837.18x = 533,853,572,192,727,232 - Step 5: Solve for x
x = 533,853,572,192,727,232/822,659,837.18 - Step 6: Final answer
x = 648,935,985.53
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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.