Finding the Fourth Proportional to 2,125,293,459.19, 2,932,763,256.05 and 1,221,078,484.15
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Solution
The fourth proportional to 2,125,293,459.19, 2,932,763,256.05 and 1,221,078,484.15 is: 1,685,006,884.85
Step by Step Solution
- Step 1: Write the proportion equation
2,125,293,459.19 : 2,932,763,256.05 = 1,221,078,484.15 : x - Step 2: Convert to fraction form
2,125,293,459.19/2,932,763,256.05 = 1,221,078,484.15/x - Step 3: Cross multiply
2,125,293,459.19x = 2,932,763,256.05 × 1,221,078,484.15 - Step 4: Simplify right side
2,125,293,459.19x = 3,581,134,111,054,915,072 - Step 5: Solve for x
x = 3,581,134,111,054,915,072/2,125,293,459.19 - Step 6: Final answer
x = 1,685,006,884.85
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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.