Finding the Fourth Proportional to 840,334,525.50, 1,159,667,251.41 and 458,859,208.99
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Solution
The fourth proportional to 840,334,525.50, 1,159,667,251.41 and 458,859,208.99 is: 633,228,769.65
Step by Step Solution
- Step 1: Write the proportion equation
840,334,525.50 : 1,159,667,251.41 = 458,859,208.99 : x - Step 2: Convert to fraction form
840,334,525.50/1,159,667,251.41 = 458,859,208.99/x - Step 3: Cross multiply
840,334,525.50x = 1,159,667,251.41 × 458,859,208.99 - Step 4: Simplify right side
840,334,525.50x = 532,123,997,673,600,128 - Step 5: Solve for x
x = 532,123,997,673,600,128/840,334,525.50 - Step 6: Final answer
x = 633,228,769.65
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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.