Finding the Fourth Proportional to 86,490,917.40, 119,357,388.28 and 48,822,011.98
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Solution
The fourth proportional to 86,490,917.40, 119,357,388.28 and 48,822,011.98 is: 67,374,332.65
Step by Step Solution
- Step 1: Write the proportion equation
86,490,917.40 : 119,357,388.28 = 48,822,011.98 : x - Step 2: Convert to fraction form
86,490,917.40/119,357,388.28 = 48,822,011.98/x - Step 3: Cross multiply
86,490,917.40x = 119,357,388.28 × 48,822,011.98 - Step 4: Simplify right side
86,490,917.40x = 5,827,267,840,507,671 - Step 5: Solve for x
x = 5,827,267,840,507,671/86,490,917.40 - Step 6: Final answer
x = 67,374,332.65
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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.