Finding the Fourth Proportional to 12,720,901.48, 17,559,401.70 and 7,564,246.12
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Solution
The fourth proportional to 12,720,901.48, 17,559,401.70 and 7,564,246.12 is: 10,441,369.77
Step by Step Solution
- Step 1: Write the proportion equation
12,720,901.48 : 17,559,401.70 = 7,564,246.12 : x - Step 2: Convert to fraction form
12,720,901.48/17,559,401.70 = 7,564,246.12/x - Step 3: Cross multiply
12,720,901.48x = 17,559,401.70 × 7,564,246.12 - Step 4: Simplify right side
12,720,901.48x = 132,823,636,178,746.41 - Step 5: Solve for x
x = 132,823,636,178,746.41/12,720,901.48 - Step 6: Final answer
x = 10,441,369.77
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1.5x scale
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.