Finding the Fourth Proportional to 15,715,276.56, 21,685,909.28 and 8,838,430.02
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Solution
The fourth proportional to 15,715,276.56, 21,685,909.28 and 8,838,430.02 is: 12,196,374.07
Step by Step Solution
- Step 1: Write the proportion equation
15,715,276.56 : 21,685,909.28 = 8,838,430.02 : x - Step 2: Convert to fraction form
15,715,276.56/21,685,909.28 = 8,838,430.02/x - Step 3: Cross multiply
15,715,276.56x = 21,685,909.28 × 8,838,430.02 - Step 4: Simplify right side
15,715,276.56x = 191,669,391,547,156.41 - Step 5: Solve for x
x = 191,669,391,547,156.41/15,715,276.56 - Step 6: Final answer
x = 12,196,374.07
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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.