Finding the Fourth Proportional to 1,572,792,847.79, 2,170,506,259.64 and 858,367,519.07
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Solution
The fourth proportional to 1,572,792,847.79, 2,170,506,259.64 and 858,367,519.07 is: 1,184,575,626.62
Step by Step Solution
- Step 1: Write the proportion equation
1,572,792,847.79 : 2,170,506,259.64 = 858,367,519.07 : x - Step 2: Convert to fraction form
1,572,792,847.79/2,170,506,259.64 = 858,367,519.07/x - Step 3: Cross multiply
1,572,792,847.79x = 2,170,506,259.64 × 858,367,519.07 - Step 4: Simplify right side
1,572,792,847.79x = 1,863,092,073,204,385,536 - Step 5: Solve for x
x = 1,863,092,073,204,385,536/1,572,792,847.79 - Step 6: Final answer
x = 1,184,575,626.62
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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.