Finding the Fourth Proportional to 1,580,864,349.08, 2,181,605,799.12 and 876,028,101.32
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Solution
The fourth proportional to 1,580,864,349.08, 2,181,605,799.12 and 876,028,101.32 is: 1,208,925,982.26
Step by Step Solution
- Step 1: Write the proportion equation
1,580,864,349.08 : 2,181,605,799.12 = 876,028,101.32 : x - Step 2: Convert to fraction form
1,580,864,349.08/2,181,605,799.12 = 876,028,101.32/x - Step 3: Cross multiply
1,580,864,349.08x = 2,181,605,799.12 × 876,028,101.32 - Step 4: Simplify right side
1,580,864,349.08x = 1,911,147,986,031,794,944 - Step 5: Solve for x
x = 1,911,147,986,031,794,944/1,580,864,349.08 - Step 6: Final answer
x = 1,208,925,982.26
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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.