Finding the Fourth Proportional to 172,204,335.84, 258,307,455.12 and 42,811,946.13
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Solution
The fourth proportional to 172,204,335.84, 258,307,455.12 and 42,811,946.13 is: 64,218,155.71
Step by Step Solution
- Step 1: Write the proportion equation
172,204,335.84 : 258,307,455.12 = 42,811,946.13 : x - Step 2: Convert to fraction form
172,204,335.84/258,307,455.12 = 42,811,946.13/x - Step 3: Cross multiply
172,204,335.84x = 258,307,455.12 × 42,811,946.13 - Step 4: Simplify right side
172,204,335.84x = 11,058,644,853,574,834 - Step 5: Solve for x
x = 11,058,644,853,574,834/172,204,335.84 - Step 6: Final answer
x = 64,218,155.71
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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.