Finding the Fourth Proportional to 883,066,605.31, 1,218,685,424.11 and 486,589,115.08
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Solution
The fourth proportional to 883,066,605.31, 1,218,685,424.11 and 486,589,115.08 is: 671,522,463.32
Step by Step Solution
- Step 1: Write the proportion equation
883,066,605.31 : 1,218,685,424.11 = 486,589,115.08 : x - Step 2: Convert to fraction form
883,066,605.31/1,218,685,424.11 = 486,589,115.08/x - Step 3: Cross multiply
883,066,605.31x = 1,218,685,424.11 × 486,589,115.08 - Step 4: Simplify right side
883,066,605.31x = 592,999,062,074,774,400 - Step 5: Solve for x
x = 592,999,062,074,774,400/883,066,605.31 - Step 6: Final answer
x = 671,522,463.32
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Double scale
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1.5x scale
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.