Finding the Fourth Proportional to 1,239,734,218.07, 1,710,833,252.12 and 682,817,265.13
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Solution
The fourth proportional to 1,239,734,218.07, 1,710,833,252.12 and 682,817,265.13 is: 942,287,843.06
Step by Step Solution
- Step 1: Write the proportion equation
1,239,734,218.07 : 1,710,833,252.12 = 682,817,265.13 : x - Step 2: Convert to fraction form
1,239,734,218.07/1,710,833,252.12 = 682,817,265.13/x - Step 3: Cross multiply
1,239,734,218.07x = 1,710,833,252.12 × 682,817,265.13 - Step 4: Simplify right side
1,239,734,218.07x = 1,168,186,482,307,900,416 - Step 5: Solve for x
x = 1,168,186,482,307,900,416/1,239,734,218.07 - Step 6: Final answer
x = 942,287,843.06
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1.5x scale
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.