Finding the Fourth Proportional to 1,478,412,079.05, 2,217,618,118.58 and 752,817,967.05
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Solution
The fourth proportional to 1,478,412,079.05, 2,217,618,118.58 and 752,817,967.05 is: 1,129,226,950.58
Step by Step Solution
- Step 1: Write the proportion equation
1,478,412,079.05 : 2,217,618,118.58 = 752,817,967.05 : x - Step 2: Convert to fraction form
1,478,412,079.05/2,217,618,118.58 = 752,817,967.05/x - Step 3: Cross multiply
1,478,412,079.05x = 2,217,618,118.58 × 752,817,967.05 - Step 4: Simplify right side
1,478,412,079.05x = 1,669,462,763,718,877,184 - Step 5: Solve for x
x = 1,669,462,763,718,877,184/1,478,412,079.05 - Step 6: Final answer
x = 1,129,226,950.58
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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.