Finding the Fourth Proportional to 1,117,536,807.81, 1,676,564,584.95 and 380,613,096.75
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Solution
The fourth proportional to 1,117,536,807.81, 1,676,564,584.95 and 380,613,096.75 is: 571,007,983.02
Step by Step Solution
- Step 1: Write the proportion equation
1,117,536,807.81 : 1,676,564,584.95 = 380,613,096.75 : x - Step 2: Convert to fraction form
1,117,536,807.81/1,676,564,584.95 = 380,613,096.75/x - Step 3: Cross multiply
1,117,536,807.81x = 1,676,564,584.95 × 380,613,096.75 - Step 4: Simplify right side
1,117,536,807.81x = 638,122,438,579,197,952 - Step 5: Solve for x
x = 638,122,438,579,197,952/1,117,536,807.81 - Step 6: Final answer
x = 571,007,983.02
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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.