Finding the Fourth Proportional to 7,205,229,430.56, 9,938,090,750.40 and 6,612,428,208.96
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Solution
The fourth proportional to 7,205,229,430.56, 9,938,090,750.40 and 6,612,428,208.96 is: 9,120,446,788.61
Step by Step Solution
- Step 1: Write the proportion equation
7,205,229,430.56 : 9,938,090,750.40 = 6,612,428,208.96 : x - Step 2: Convert to fraction form
7,205,229,430.56/9,938,090,750.40 = 6,612,428,208.96/x - Step 3: Cross multiply
7,205,229,430.56x = 9,938,090,750.40 × 6,612,428,208.96 - Step 4: Simplify right side
7,205,229,430.56x = 65,714,911,621,149,409,280 - Step 5: Solve for x
x = 65,714,911,621,149,409,280/7,205,229,430.56 - Step 6: Final answer
x = 9,120,446,788.61
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.