Finding the Fourth Proportional to 128,455,032.53, 177,268,119.95 and 69,717,698.42
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Solution
The fourth proportional to 128,455,032.53, 177,268,119.95 and 69,717,698.42 is: 96,210,518.82
Step by Step Solution
- Step 1: Write the proportion equation
128,455,032.53 : 177,268,119.95 = 69,717,698.42 : x - Step 2: Convert to fraction form
128,455,032.53/177,268,119.95 = 69,717,698.42/x - Step 3: Cross multiply
128,455,032.53x = 177,268,119.95 × 69,717,698.42 - Step 4: Simplify right side
128,455,032.53x = 12,358,725,325,442,440 - Step 5: Solve for x
x = 12,358,725,325,442,440/128,455,032.53 - Step 6: Final answer
x = 96,210,518.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.