Finding the Fourth Proportional to 64,708,389.39, 89,299,781.10 and 38,269,407.18
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Solution
The fourth proportional to 64,708,389.39, 89,299,781.10 and 38,269,407.18 is: 52,813,085.23
Step by Step Solution
- Step 1: Write the proportion equation
64,708,389.39 : 89,299,781.10 = 38,269,407.18 : x - Step 2: Convert to fraction form
64,708,389.39/89,299,781.10 = 38,269,407.18/x - Step 3: Cross multiply
64,708,389.39x = 89,299,781.10 × 38,269,407.18 - Step 4: Simplify right side
64,708,389.39x = 3,417,449,684,000,768 - Step 5: Solve for x
x = 3,417,449,684,000,768/64,708,389.39 - Step 6: Final answer
x = 52,813,085.23
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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.