Finding the Fourth Proportional to 87,760,740.17, 121,051,506.42 and 56,438,389.71
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Solution
The fourth proportional to 87,760,740.17, 121,051,506.42 and 56,438,389.71 is: 77,847,475.77
Step by Step Solution
- Step 1: Write the proportion equation
87,760,740.17 : 121,051,506.42 = 56,438,389.71 : x - Step 2: Convert to fraction form
87,760,740.17/121,051,506.42 = 56,438,389.71/x - Step 3: Cross multiply
87,760,740.17x = 121,051,506.42 × 56,438,389.71 - Step 4: Simplify right side
87,760,740.17x = 6,831,952,094,314,527 - Step 5: Solve for x
x = 6,831,952,094,314,527/87,760,740.17 - Step 6: Final answer
x = 77,847,475.77
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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.