Finding the Fourth Proportional to 80,888,913.30, 121,333,369.95 and 67,436,813.00
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Solution
The fourth proportional to 80,888,913.30, 121,333,369.95 and 67,436,813.00 is: 101,155,219.49
Step by Step Solution
- Step 1: Write the proportion equation
80,888,913.30 : 121,333,369.95 = 67,436,813.00 : x - Step 2: Convert to fraction form
80,888,913.30/121,333,369.95 = 67,436,813.00/x - Step 3: Cross multiply
80,888,913.30x = 121,333,369.95 × 67,436,813.00 - Step 4: Simplify right side
80,888,913.30x = 8,182,335,779,371,303 - Step 5: Solve for x
x = 8,182,335,779,371,303/80,888,913.30 - Step 6: Final answer
x = 101,155,219.49
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1.5x scale
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.