Finding the Fourth Proportional to 1,063,018,265.80, 1,594,527,398.70 and 489,709,337.80
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Solution
The fourth proportional to 1,063,018,265.80, 1,594,527,398.70 and 489,709,337.80 is: 734,564,006.70
Step by Step Solution
- Step 1: Write the proportion equation
1,063,018,265.80 : 1,594,527,398.70 = 489,709,337.80 : x - Step 2: Convert to fraction form
1,063,018,265.80/1,594,527,398.70 = 489,709,337.80/x - Step 3: Cross multiply
1,063,018,265.80x = 1,594,527,398.70 × 489,709,337.80 - Step 4: Simplify right side
1,063,018,265.80x = 780,854,956,521,333,632 - Step 5: Solve for x
x = 780,854,956,521,333,632/1,063,018,265.80 - Step 6: Final answer
x = 734,564,006.70
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Double scale
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Similar ratio
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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.