Finding the Fourth Proportional to 1,250,308,807.68, 1,875,635,675.43 and 725,924,866.68
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Solution
The fourth proportional to 1,250,308,807.68, 1,875,635,675.43 and 725,924,866.68 is: 1,088,987,431.96
Step by Step Solution
- Step 1: Write the proportion equation
1,250,308,807.68 : 1,875,635,675.43 = 725,924,866.68 : x - Step 2: Convert to fraction form
1,250,308,807.68/1,875,635,675.43 = 725,924,866.68/x - Step 3: Cross multiply
1,250,308,807.68x = 1,875,635,675.43 × 725,924,866.68 - Step 4: Simplify right side
1,250,308,807.68x = 1,361,570,577,626,774,528 - Step 5: Solve for x
x = 1,361,570,577,626,774,528/1,250,308,807.68 - Step 6: Final answer
x = 1,088,987,431.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.