Finding the Fourth Proportional to 1,423,475,958.20, 2,135,535,902.04 and 768,412,924.16
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Solution
The fourth proportional to 1,423,475,958.20, 2,135,535,902.04 and 768,412,924.16 is: 1,152,793,187.47
Step by Step Solution
- Step 1: Write the proportion equation
1,423,475,958.20 : 2,135,535,902.04 = 768,412,924.16 : x - Step 2: Convert to fraction form
1,423,475,958.20/2,135,535,902.04 = 768,412,924.16/x - Step 3: Cross multiply
1,423,475,958.20x = 2,135,535,902.04 × 768,412,924.16 - Step 4: Simplify right side
1,423,475,958.20x = 1,640,973,387,135,219,712 - Step 5: Solve for x
x = 1,640,973,387,135,219,712/1,423,475,958.20 - Step 6: Final answer
x = 1,152,793,187.47
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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.