Finding the Fourth Proportional to 149,779,813.70, 209,974,854.70 and 149,779,813.70
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Solution
The fourth proportional to 149,779,813.70, 209,974,854.70 and 149,779,813.70 is: 209,974,854.70
Step by Step Solution
- Step 1: Write the proportion equation
149,779,813.70 : 209,974,854.70 = 149,779,813.70 : x - Step 2: Convert to fraction form
149,779,813.70/209,974,854.70 = 149,779,813.70/x - Step 3: Cross multiply
149,779,813.70x = 209,974,854.70 × 149,779,813.70 - Step 4: Simplify right side
149,779,813.70x = 31,449,994,618,650,564 - Step 5: Solve for x
x = 31,449,994,618,650,564/149,779,813.70 - Step 6: Final answer
x = 209,974,854.70
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.