Finding the Fourth Proportional to 1,475,524,890.56, 2,037,163,452 and 919,424,907.20
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Solution
The fourth proportional to 1,475,524,890.56, 2,037,163,452 and 919,424,907.20 is: 1,269,391,543.17
Step by Step Solution
- Step 1: Write the proportion equation
1,475,524,890.56 : 2,037,163,452 = 919,424,907.20 : x - Step 2: Convert to fraction form
1,475,524,890.56/2,037,163,452 = 919,424,907.20/x - Step 3: Cross multiply
1,475,524,890.56x = 2,037,163,452 × 919,424,907.20 - Step 4: Simplify right side
1,475,524,890.56x = 1,873,018,817,806,331,648 - Step 5: Solve for x
x = 1,873,018,817,806,331,648/1,475,524,890.56 - Step 6: Final answer
x = 1,269,391,543.17
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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.