Finding the Fourth Proportional to 28,827,071.60, 39,781,358.20 and 15,774,330.02
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Solution
The fourth proportional to 28,827,071.60, 39,781,358.20 and 15,774,330.02 is: 21,768,575.09
Step by Step Solution
- Step 1: Write the proportion equation
28,827,071.60 : 39,781,358.20 = 15,774,330.02 : x - Step 2: Convert to fraction form
28,827,071.60/39,781,358.20 = 15,774,330.02/x - Step 3: Cross multiply
28,827,071.60x = 39,781,358.20 × 15,774,330.02 - Step 4: Simplify right side
28,827,071.60x = 627,524,272,890,633.25 - Step 5: Solve for x
x = 627,524,272,890,633.25/28,827,071.60 - Step 6: Final answer
x = 21,768,575.09
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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.