Finding the Fourth Proportional to 357,371,990.20, 536,057,985.30 and 234,927,983.80
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Solution
The fourth proportional to 357,371,990.20, 536,057,985.30 and 234,927,983.80 is: 352,391,975.70
Step by Step Solution
- Step 1: Write the proportion equation
357,371,990.20 : 536,057,985.30 = 234,927,983.80 : x - Step 2: Convert to fraction form
357,371,990.20/536,057,985.30 = 234,927,983.80/x - Step 3: Cross multiply
357,371,990.20x = 536,057,985.30 × 234,927,983.80 - Step 4: Simplify right side
357,371,990.20x = 125,935,021,686,419,040 - Step 5: Solve for x
x = 125,935,021,686,419,040/357,371,990.20 - Step 6: Final answer
x = 352,391,975.70
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1.5x scale
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.