Finding the Fourth Proportional to 390,955,014.37, 586,148,191.39 and 183,586,570.09
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Solution
The fourth proportional to 390,955,014.37, 586,148,191.39 and 183,586,570.09 is: 275,246,337.99
Step by Step Solution
- Step 1: Write the proportion equation
390,955,014.37 : 586,148,191.39 = 183,586,570.09 : x - Step 2: Convert to fraction form
390,955,014.37/586,148,191.39 = 183,586,570.09/x - Step 3: Cross multiply
390,955,014.37x = 586,148,191.39 × 183,586,570.09 - Step 4: Simplify right side
390,955,014.37x = 107,608,936,021,387,440 - Step 5: Solve for x
x = 107,608,936,021,387,440/390,955,014.37 - Step 6: Final answer
x = 275,246,337.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.