Finding the Fourth Proportional to 86,943,936.70, 130,415,905.05 and 56,332,935.10
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Solution
The fourth proportional to 86,943,936.70, 130,415,905.05 and 56,332,935.10 is: 84,499,402.65
Step by Step Solution
- Step 1: Write the proportion equation
86,943,936.70 : 130,415,905.05 = 56,332,935.10 : x - Step 2: Convert to fraction form
86,943,936.70/130,415,905.05 = 56,332,935.10/x - Step 3: Cross multiply
86,943,936.70x = 130,415,905.05 × 56,332,935.10 - Step 4: Simplify right side
86,943,936.70x = 7,346,710,715,189,412 - Step 5: Solve for x
x = 7,346,710,715,189,412/86,943,936.70 - Step 6: Final answer
x = 84,499,402.65
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1.5x scale
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.