Finding the Fourth Proportional to 1,773,866,860.62, 2,447,952,128.77 and 980,966,188.84
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Solution
The fourth proportional to 1,773,866,860.62, 2,447,952,128.77 and 980,966,188.84 is: 1,353,742,111.95
Step by Step Solution
- Step 1: Write the proportion equation
1,773,866,860.62 : 2,447,952,128.77 = 980,966,188.84 : x - Step 2: Convert to fraction form
1,773,866,860.62/2,447,952,128.77 = 980,966,188.84/x - Step 3: Cross multiply
1,773,866,860.62x = 2,447,952,128.77 × 980,966,188.84 - Step 4: Simplify right side
1,773,866,860.62x = 2,401,358,270,222,272,000 - Step 5: Solve for x
x = 2,401,358,270,222,272,000/1,773,866,860.62 - Step 6: Final answer
x = 1,353,742,111.95
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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.