Finding the Fourth Proportional to 1,439,458,570.80, 2,159,187,856.20 and 1,221,534,545.74
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Solution
The fourth proportional to 1,439,458,570.80, 2,159,187,856.20 and 1,221,534,545.74 is: 1,832,301,818.61
Step by Step Solution
- Step 1: Write the proportion equation
1,439,458,570.80 : 2,159,187,856.20 = 1,221,534,545.74 : x - Step 2: Convert to fraction form
1,439,458,570.80/2,159,187,856.20 = 1,221,534,545.74/x - Step 3: Cross multiply
1,439,458,570.80x = 2,159,187,856.20 × 1,221,534,545.74 - Step 4: Simplify right side
1,439,458,570.80x = 2,637,522,557,085,193,216 - Step 5: Solve for x
x = 2,637,522,557,085,193,216/1,439,458,570.80 - Step 6: Final answer
x = 1,832,301,818.61
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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.