Finding the Fourth Proportional to 390,955,019.99, 586,148,199.82 and 183,586,575.74
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Solution
The fourth proportional to 390,955,019.99, 586,148,199.82 and 183,586,575.74 is: 275,246,346.45
Step by Step Solution
- Step 1: Write the proportion equation
390,955,019.99 : 586,148,199.82 = 183,586,575.74 : x - Step 2: Convert to fraction form
390,955,019.99/586,148,199.82 = 183,586,575.74/x - Step 3: Cross multiply
390,955,019.99x = 586,148,199.82 × 183,586,575.74 - Step 4: Simplify right side
390,955,019.99x = 107,608,940,877,729,392 - Step 5: Solve for x
x = 107,608,940,877,729,392/390,955,019.99 - Step 6: Final answer
x = 275,246,346.45
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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.