Finding the Fourth Proportional to 956,779,272.40, 1,340,397,974 and 956,779,272.40
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Solution
The fourth proportional to 956,779,272.40, 1,340,397,974 and 956,779,272.40 is: 1,340,397,974
Step by Step Solution
- Step 1: Write the proportion equation
956,779,272.40 : 1,340,397,974 = 956,779,272.40 : x - Step 2: Convert to fraction form
956,779,272.40/1,340,397,974 = 956,779,272.40/x - Step 3: Cross multiply
956,779,272.40x = 1,340,397,974 × 956,779,272.40 - Step 4: Simplify right side
956,779,272.40x = 1,282,464,998,290,153,984 - Step 5: Solve for x
x = 1,282,464,998,290,153,984/956,779,272.40 - Step 6: Final answer
x = 1,340,397,974
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.