Finding the Fourth Proportional to 1,122,723,232.60, 1,549,279,407.90 and 652,791,214.12
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Solution
The fourth proportional to 1,122,723,232.60, 1,549,279,407.90 and 652,791,214.12 is: 900,806,143.78
Step by Step Solution
- Step 1: Write the proportion equation
1,122,723,232.60 : 1,549,279,407.90 = 652,791,214.12 : x - Step 2: Convert to fraction form
1,122,723,232.60/1,549,279,407.90 = 652,791,214.12/x - Step 3: Cross multiply
1,122,723,232.60x = 1,549,279,407.90 × 652,791,214.12 - Step 4: Simplify right side
1,122,723,232.60x = 1,011,355,985,694,155,776 - Step 5: Solve for x
x = 1,011,355,985,694,155,776/1,122,723,232.60 - Step 6: Final answer
x = 900,806,143.78
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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.