Finding the Fourth Proportional to 129,031,796.90, 193,547,695.35 and 128,136,001.70
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Solution
The fourth proportional to 129,031,796.90, 193,547,695.35 and 128,136,001.70 is: 192,204,002.55
Step by Step Solution
- Step 1: Write the proportion equation
129,031,796.90 : 193,547,695.35 = 128,136,001.70 : x - Step 2: Convert to fraction form
129,031,796.90/193,547,695.35 = 128,136,001.70/x - Step 3: Cross multiply
129,031,796.90x = 193,547,695.35 × 128,136,001.70 - Step 4: Simplify right side
129,031,796.90x = 24,800,427,820,398,680 - Step 5: Solve for x
x = 24,800,427,820,398,680/129,031,796.90 - Step 6: Final answer
x = 192,204,002.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.