Finding the Fourth Proportional to 438,049,219.80, 657,073,829.70 and 366,385,603.80
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Solution
The fourth proportional to 438,049,219.80, 657,073,829.70 and 366,385,603.80 is: 549,578,405.70
Step by Step Solution
- Step 1: Write the proportion equation
438,049,219.80 : 657,073,829.70 = 366,385,603.80 : x - Step 2: Convert to fraction form
438,049,219.80/657,073,829.70 = 366,385,603.80/x - Step 3: Cross multiply
438,049,219.80x = 657,073,829.70 × 366,385,603.80 - Step 4: Simplify right side
438,049,219.80x = 240,742,391,835,812,896 - Step 5: Solve for x
x = 240,742,391,835,812,896/438,049,219.80 - Step 6: Final answer
x = 549,578,405.70
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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.