Finding the Fourth Proportional to 653,241,877.80, 979,862,816.70 and 576,714,373.80
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Solution
The fourth proportional to 653,241,877.80, 979,862,816.70 and 576,714,373.80 is: 865,071,560.70
Step by Step Solution
- Step 1: Write the proportion equation
653,241,877.80 : 979,862,816.70 = 576,714,373.80 : x - Step 2: Convert to fraction form
653,241,877.80/979,862,816.70 = 576,714,373.80/x - Step 3: Cross multiply
653,241,877.80x = 979,862,816.70 × 576,714,373.80 - Step 4: Simplify right side
653,241,877.80x = 565,100,970,743,044,672 - Step 5: Solve for x
x = 565,100,970,743,044,672/653,241,877.80 - Step 6: Final answer
x = 865,071,560.70
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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.