Finding the Fourth Proportional to 91,136,011.36, 125,785,623.18 and 69,071,024.12
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Solution
The fourth proportional to 91,136,011.36, 125,785,623.18 and 69,071,024.12 is: 95,331,600.35
Step by Step Solution
- Step 1: Write the proportion equation
91,136,011.36 : 125,785,623.18 = 69,071,024.12 : x - Step 2: Convert to fraction form
91,136,011.36/125,785,623.18 = 69,071,024.12/x - Step 3: Cross multiply
91,136,011.36x = 125,785,623.18 × 69,071,024.12 - Step 4: Simplify right side
91,136,011.36x = 8,688,141,812,615,012 - Step 5: Solve for x
x = 8,688,141,812,615,012/91,136,011.36 - Step 6: Final answer
x = 95,331,600.35
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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.