Finding the Fourth Proportional to 1,122,723,231.60, 1,549,279,406.52 and 652,791,213.12
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Solution
The fourth proportional to 1,122,723,231.60, 1,549,279,406.52 and 652,791,213.12 is: 900,806,142.40
Step by Step Solution
- Step 1: Write the proportion equation
1,122,723,231.60 : 1,549,279,406.52 = 652,791,213.12 : x - Step 2: Convert to fraction form
1,122,723,231.60/1,549,279,406.52 = 652,791,213.12/x - Step 3: Cross multiply
1,122,723,231.60x = 1,549,279,406.52 × 652,791,213.12 - Step 4: Simplify right side
1,122,723,231.60x = 1,011,355,983,244,024,448 - Step 5: Solve for x
x = 1,011,355,983,244,024,448/1,122,723,231.60 - Step 6: Final answer
x = 900,806,142.40
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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.