Finding the Fourth Proportional to 1,422,750,407.08, 1,963,353,393.16 and 787,699,202.20
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Solution
The fourth proportional to 1,422,750,407.08, 1,963,353,393.16 and 787,699,202.20 is: 1,087,001,552.58
Step by Step Solution
- Step 1: Write the proportion equation
1,422,750,407.08 : 1,963,353,393.16 = 787,699,202.20 : x - Step 2: Convert to fraction form
1,422,750,407.08/1,963,353,393.16 = 787,699,202.20/x - Step 3: Cross multiply
1,422,750,407.08x = 1,963,353,393.16 × 787,699,202.20 - Step 4: Simplify right side
1,422,750,407.08x = 1,546,531,901,428,795,136 - Step 5: Solve for x
x = 1,546,531,901,428,795,136/1,422,750,407.08 - Step 6: Final answer
x = 1,087,001,552.58
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1.5x scale
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.