Finding the Fourth Proportional to 1,781,896,943.67, 2,672,947,558.67 and 471,764,952.42
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Solution
The fourth proportional to 1,781,896,943.67, 2,672,947,558.67 and 471,764,952.42 is: 707,674,471.48
Step by Step Solution
- Step 1: Write the proportion equation
1,781,896,943.67 : 2,672,947,558.67 = 471,764,952.42 : x - Step 2: Convert to fraction form
1,781,896,943.67/2,672,947,558.67 = 471,764,952.42/x - Step 3: Cross multiply
1,781,896,943.67x = 2,672,947,558.67 × 471,764,952.42 - Step 4: Simplify right side
1,781,896,943.67x = 1,261,002,977,834,748,928 - Step 5: Solve for x
x = 1,261,002,977,834,748,928/1,781,896,943.67 - Step 6: Final answer
x = 707,674,471.48
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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.