Finding the Fourth Proportional to 1,202,626,262, 1,659,596,014.68 and 707,621,031.92
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Solution
The fourth proportional to 1,202,626,262, 1,659,596,014.68 and 707,621,031.92 is: 976,500,415.45
Step by Step Solution
- Step 1: Write the proportion equation
1,202,626,262 : 1,659,596,014.68 = 707,621,031.92 : x - Step 2: Convert to fraction form
1,202,626,262/1,659,596,014.68 = 707,621,031.92/x - Step 3: Cross multiply
1,202,626,262x = 1,659,596,014.68 × 707,621,031.92 - Step 4: Simplify right side
1,202,626,262x = 1,174,365,044,478,181,120 - Step 5: Solve for x
x = 1,174,365,044,478,181,120/1,202,626,262 - Step 6: Final answer
x = 976,500,415.45
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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.