Finding the Fourth Proportional to 18,924,416.60, 28,386,621.95 and 4,547,484.41
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Solution
The fourth proportional to 18,924,416.60, 28,386,621.95 and 4,547,484.41 is: 6,821,225.90
Step by Step Solution
- Step 1: Write the proportion equation
18,924,416.60 : 28,386,621.95 = 4,547,484.41 : x - Step 2: Convert to fraction form
18,924,416.60/28,386,621.95 = 4,547,484.41/x - Step 3: Cross multiply
18,924,416.60x = 28,386,621.95 × 4,547,484.41 - Step 4: Simplify right side
18,924,416.60x = 129,087,720,605,518.28 - Step 5: Solve for x
x = 129,087,720,605,518.28/18,924,416.60 - Step 6: Final answer
x = 6,821,225.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.