Finding the Fourth Proportional to 26,376,078.40, 39,564,117.60 and 19,909,556.80
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Solution
The fourth proportional to 26,376,078.40, 39,564,117.60 and 19,909,556.80 is: 29,864,335.20
Step by Step Solution
- Step 1: Write the proportion equation
26,376,078.40 : 39,564,117.60 = 19,909,556.80 : x - Step 2: Convert to fraction form
26,376,078.40/39,564,117.60 = 19,909,556.80/x - Step 3: Cross multiply
26,376,078.40x = 39,564,117.60 × 19,909,556.80 - Step 4: Simplify right side
26,376,078.40x = 787,704,046,599,079.75 - Step 5: Solve for x
x = 787,704,046,599,079.75/26,376,078.40 - Step 6: Final answer
x = 29,864,335.20
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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.