Finding the Fourth Proportional to 637,119,954.14, 879,269,726.19 and 386,234,920.28
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Solution
The fourth proportional to 637,119,954.14, 879,269,726.19 and 386,234,920.28 is: 533,030,978.53
Step by Step Solution
- Step 1: Write the proportion equation
637,119,954.14 : 879,269,726.19 = 386,234,920.28 : x - Step 2: Convert to fraction form
637,119,954.14/879,269,726.19 = 386,234,920.28/x - Step 3: Cross multiply
637,119,954.14x = 879,269,726.19 × 386,234,920.28 - Step 4: Simplify right side
637,119,954.14x = 339,604,672,595,215,744 - Step 5: Solve for x
x = 339,604,672,595,215,744/637,119,954.14 - Step 6: Final answer
x = 533,030,978.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.