Finding the Fourth Proportional to 1,470,909,844.90, 2,207,223,237.78 and 816,410,145.70
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Solution
The fourth proportional to 1,470,909,844.90, 2,207,223,237.78 and 816,410,145.70 is: 1,225,091,701.84
Step by Step Solution
- Step 1: Write the proportion equation
1,470,909,844.90 : 2,207,223,237.78 = 816,410,145.70 : x - Step 2: Convert to fraction form
1,470,909,844.90/2,207,223,237.78 = 816,410,145.70/x - Step 3: Cross multiply
1,470,909,844.90x = 2,207,223,237.78 × 816,410,145.70 - Step 4: Simplify right side
1,470,909,844.90x = 1,801,999,445,148,395,776 - Step 5: Solve for x
x = 1,801,999,445,148,395,776/1,470,909,844.90 - Step 6: Final answer
x = 1,225,091,701.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.