Finding the Fourth Proportional to 756,644,804.20, 1,134,967,206.30 and 498,151,901.80
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Solution
The fourth proportional to 756,644,804.20, 1,134,967,206.30 and 498,151,901.80 is: 747,227,852.70
Step by Step Solution
- Step 1: Write the proportion equation
756,644,804.20 : 1,134,967,206.30 = 498,151,901.80 : x - Step 2: Convert to fraction form
756,644,804.20/1,134,967,206.30 = 498,151,901.80/x - Step 3: Cross multiply
756,644,804.20x = 1,134,967,206.30 × 498,151,901.80 - Step 4: Simplify right side
756,644,804.20x = 565,386,072,298,977,920 - Step 5: Solve for x
x = 565,386,072,298,977,920/756,644,804.20 - Step 6: Final answer
x = 747,227,852.70
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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.