Finding the Fourth Proportional to 128,910,616.79, 177,896,670.36 and 70,173,727.81
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Solution
The fourth proportional to 128,910,616.79, 177,896,670.36 and 70,173,727.81 is: 96,839,754.82
Step by Step Solution
- Step 1: Write the proportion equation
128,910,616.79 : 177,896,670.36 = 70,173,727.81 : x - Step 2: Convert to fraction form
128,910,616.79/177,896,670.36 = 70,173,727.81/x - Step 3: Cross multiply
128,910,616.79x = 177,896,670.36 × 70,173,727.81 - Step 4: Simplify right side
128,910,616.79x = 12,483,672,522,907,584 - Step 5: Solve for x
x = 12,483,672,522,907,584/128,910,616.79 - Step 6: Final answer
x = 96,839,754.82
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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.