Finding the Fourth Proportional to 55,586,688.66, 76,709,637.63 and 30,808,475.21
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Solution
The fourth proportional to 55,586,688.66, 76,709,637.63 and 30,808,475.21 is: 42,515,699.82
Step by Step Solution
- Step 1: Write the proportion equation
55,586,688.66 : 76,709,637.63 = 30,808,475.21 : x - Step 2: Convert to fraction form
55,586,688.66/76,709,637.63 = 30,808,475.21/x - Step 3: Cross multiply
55,586,688.66x = 76,709,637.63 × 30,808,475.21 - Step 4: Simplify right side
55,586,688.66x = 2,363,306,968,908,389.50 - Step 5: Solve for x
x = 2,363,306,968,908,389.50/55,586,688.66 - Step 6: Final answer
x = 42,515,699.82
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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.