Finding the Fourth Proportional to 16,642,257.60, 24,963,386.40 and 13,618,948.80
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Solution
The fourth proportional to 16,642,257.60, 24,963,386.40 and 13,618,948.80 is: 20,428,423.20
Step by Step Solution
- Step 1: Write the proportion equation
16,642,257.60 : 24,963,386.40 = 13,618,948.80 : x - Step 2: Convert to fraction form
16,642,257.60/24,963,386.40 = 13,618,948.80/x - Step 3: Cross multiply
16,642,257.60x = 24,963,386.40 × 13,618,948.80 - Step 4: Simplify right side
16,642,257.60x = 339,975,081,256,216.31 - Step 5: Solve for x
x = 339,975,081,256,216.31/16,642,257.60 - Step 6: Final answer
x = 20,428,423.20
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1.5x scale
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.