Finding the Fourth Proportional to 15,599,637.28, 21,527,425.95 and 8,724,146.68
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Solution
The fourth proportional to 15,599,637.28, 21,527,425.95 and 8,724,146.68 is: 12,039,281.32
Step by Step Solution
- Step 1: Write the proportion equation
15,599,637.28 : 21,527,425.95 = 8,724,146.68 : x - Step 2: Convert to fraction form
15,599,637.28/21,527,425.95 = 8,724,146.68/x - Step 3: Cross multiply
15,599,637.28x = 21,527,425.95 × 8,724,146.68 - Step 4: Simplify right side
15,599,637.28x = 187,808,421,630,638.34 - Step 5: Solve for x
x = 187,808,421,630,638.34/15,599,637.28 - Step 6: Final answer
x = 12,039,281.32
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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.