Finding the Fourth Proportional to 128,455,038.03, 177,268,127.54 and 69,717,703.92
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Solution
The fourth proportional to 128,455,038.03, 177,268,127.54 and 69,717,703.92 is: 96,210,526.42
Step by Step Solution
- Step 1: Write the proportion equation
128,455,038.03 : 177,268,127.54 = 69,717,703.92 : x - Step 2: Convert to fraction form
128,455,038.03/177,268,127.54 = 69,717,703.92/x - Step 3: Cross multiply
128,455,038.03x = 177,268,127.54 × 69,717,703.92 - Step 4: Simplify right side
128,455,038.03x = 12,358,726,830,286,518 - Step 5: Solve for x
x = 12,358,726,830,286,518/128,455,038.03 - Step 6: Final answer
x = 96,210,526.42
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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.