Finding the Fourth Proportional to 346,642,312.23, 478,087,461.68 and 304,736,777.85
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Solution
The fourth proportional to 346,642,312.23, 478,087,461.68 and 304,736,777.85 is: 420,291,543.94
Step by Step Solution
- Step 1: Write the proportion equation
346,642,312.23 : 478,087,461.68 = 304,736,777.85 : x - Step 2: Convert to fraction form
346,642,312.23/478,087,461.68 = 304,736,777.85/x - Step 3: Cross multiply
346,642,312.23x = 478,087,461.68 × 304,736,777.85 - Step 4: Simplify right side
346,642,312.23x = 145,690,832,601,324,864 - Step 5: Solve for x
x = 145,690,832,601,324,864/346,642,312.23 - Step 6: Final answer
x = 420,291,543.94
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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.