Finding the Fourth Proportional to 1,781,896,839.95, 2,672,947,403.07 and 471,764,848.70
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Solution
The fourth proportional to 1,781,896,839.95, 2,672,947,403.07 and 471,764,848.70 is: 707,674,315.88
Step by Step Solution
- Step 1: Write the proportion equation
1,781,896,839.95 : 2,672,947,403.07 = 471,764,848.70 : x - Step 2: Convert to fraction form
1,781,896,839.95/2,672,947,403.07 = 471,764,848.70/x - Step 3: Cross multiply
1,781,896,839.95x = 2,672,947,403.07 × 471,764,848.70 - Step 4: Simplify right side
1,781,896,839.95x = 1,261,002,627,179,011,840 - Step 5: Solve for x
x = 1,261,002,627,179,011,840/1,781,896,839.95 - Step 6: Final answer
x = 707,674,315.88
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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.