Finding the Fourth Proportional to 28,447,875.84, 39,258,192.36 and 15,395,135.91
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Solution
The fourth proportional to 28,447,875.84, 39,258,192.36 and 15,395,135.91 is: 21,245,354.49
Step by Step Solution
- Step 1: Write the proportion equation
28,447,875.84 : 39,258,192.36 = 15,395,135.91 : x - Step 2: Convert to fraction form
28,447,875.84/39,258,192.36 = 15,395,135.91/x - Step 3: Cross multiply
28,447,875.84x = 39,258,192.36 × 15,395,135.91 - Step 4: Simplify right side
28,447,875.84x = 604,385,206,873,637.25 - Step 5: Solve for x
x = 604,385,206,873,637.25/28,447,875.84 - Step 6: Final answer
x = 21,245,354.49
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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.