Finding the Fourth Proportional to 115,564,216.84, 159,478,605.50 and 63,353,621.39
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Solution
The fourth proportional to 115,564,216.84, 159,478,605.50 and 63,353,621.39 is: 87,427,989.98
Step by Step Solution
- Step 1: Write the proportion equation
115,564,216.84 : 159,478,605.50 = 63,353,621.39 : x - Step 2: Convert to fraction form
115,564,216.84/159,478,605.50 = 63,353,621.39/x - Step 3: Cross multiply
115,564,216.84x = 159,478,605.50 × 63,353,621.39 - Step 4: Simplify right side
115,564,216.84x = 10,103,547,191,538,010 - Step 5: Solve for x
x = 10,103,547,191,538,010/115,564,216.84 - Step 6: Final answer
x = 87,427,989.98
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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.