Finding the Fourth Proportional to 98,136,437.76, 135,429,210.36 and 54,085,047.84
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Solution
The fourth proportional to 98,136,437.76, 135,429,210.36 and 54,085,047.84 is: 74,637,876.50
Step by Step Solution
- Step 1: Write the proportion equation
98,136,437.76 : 135,429,210.36 = 54,085,047.84 : x - Step 2: Convert to fraction form
98,136,437.76/135,429,210.36 = 54,085,047.84/x - Step 3: Cross multiply
98,136,437.76x = 135,429,210.36 × 54,085,047.84 - Step 4: Simplify right side
98,136,437.76x = 7,324,695,321,254,025 - Step 5: Solve for x
x = 7,324,695,321,254,025/98,136,437.76 - Step 6: Final answer
x = 74,637,876.50
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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.