Finding the Fourth Proportional to 128,838,510, 177,797,143.80 and 70,891,758
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Solution
The fourth proportional to 128,838,510, 177,797,143.80 and 70,891,758 is: 97,830,626.04
Step by Step Solution
- Step 1: Write the proportion equation
128,838,510 : 177,797,143.80 = 70,891,758 : x - Step 2: Convert to fraction form
128,838,510/177,797,143.80 = 70,891,758/x - Step 3: Cross multiply
128,838,510x = 177,797,143.80 × 70,891,758 - Step 4: Simplify right side
128,838,510x = 12,604,352,091,360,802 - Step 5: Solve for x
x = 12,604,352,091,360,802/128,838,510 - Step 6: Final answer
x = 97,830,626.04
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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.