Finding the Fourth Proportional to 470,867,440.28, 649,912,393.58 and 364,811,081.40
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Solution
The fourth proportional to 470,867,440.28, 649,912,393.58 and 364,811,081.40 is: 503,528,642.75
Step by Step Solution
- Step 1: Write the proportion equation
470,867,440.28 : 649,912,393.58 = 364,811,081.40 : x - Step 2: Convert to fraction form
470,867,440.28/649,912,393.58 = 364,811,081.40/x - Step 3: Cross multiply
470,867,440.28x = 649,912,393.58 × 364,811,081.40 - Step 4: Simplify right side
470,867,440.28x = 237,095,243,115,358,176 - Step 5: Solve for x
x = 237,095,243,115,358,176/470,867,440.28 - Step 6: Final answer
x = 503,528,642.75
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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.