Finding the Fourth Proportional to 239,481,031.70, 359,221,547.55 and 103,432,135.70
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Solution
The fourth proportional to 239,481,031.70, 359,221,547.55 and 103,432,135.70 is: 155,148,203.55
Step by Step Solution
- Step 1: Write the proportion equation
239,481,031.70 : 359,221,547.55 = 103,432,135.70 : x - Step 2: Convert to fraction form
239,481,031.70/359,221,547.55 = 103,432,135.70/x - Step 3: Cross multiply
239,481,031.70x = 359,221,547.55 × 103,432,135.70 - Step 4: Simplify right side
239,481,031.70x = 37,155,051,852,555,608 - Step 5: Solve for x
x = 37,155,051,852,555,608/239,481,031.70 - Step 6: Final answer
x = 155,148,203.55
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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.