Finding the Fourth Proportional to 1,435,438,740.75, 2,153,158,108.71 and 344,921,808.75
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Solution
The fourth proportional to 1,435,438,740.75, 2,153,158,108.71 and 344,921,808.75 is: 517,382,712.54
Step by Step Solution
- Step 1: Write the proportion equation
1,435,438,740.75 : 2,153,158,108.71 = 344,921,808.75 : x - Step 2: Convert to fraction form
1,435,438,740.75/2,153,158,108.71 = 344,921,808.75/x - Step 3: Cross multiply
1,435,438,740.75x = 2,153,158,108.71 × 344,921,808.75 - Step 4: Simplify right side
1,435,438,740.75x = 742,671,189,380,982,400 - Step 5: Solve for x
x = 742,671,189,380,982,400/1,435,438,740.75 - Step 6: Final answer
x = 517,382,712.54
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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.