Finding the Fourth Proportional to 147,595,013.70, 221,486,998.95 and 86,184,053.70
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Solution
The fourth proportional to 147,595,013.70, 221,486,998.95 and 86,184,053.70 is: 129,331,248.62
Step by Step Solution
- Step 1: Write the proportion equation
147,595,013.70 : 221,486,998.95 = 86,184,053.70 : x - Step 2: Convert to fraction form
147,595,013.70/221,486,998.95 = 86,184,053.70/x - Step 3: Cross multiply
147,595,013.70x = 221,486,998.95 × 86,184,053.70 - Step 4: Simplify right side
147,595,013.70x = 19,088,647,411,358,644 - Step 5: Solve for x
x = 19,088,647,411,358,644/147,595,013.70 - Step 6: Final answer
x = 129,331,248.62
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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.