Finding the Fourth Proportional to 7,371,028,381.20, 10,117,873,941.06 and 6,516,943,645.20
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Solution
The fourth proportional to 7,371,028,381.20, 10,117,873,941.06 and 6,516,943,645.20 is: 8,945,510,839.61
Step by Step Solution
- Step 1: Write the proportion equation
7,371,028,381.20 : 10,117,873,941.06 = 6,516,943,645.20 : x - Step 2: Convert to fraction form
7,371,028,381.20/10,117,873,941.06 = 6,516,943,645.20/x - Step 3: Cross multiply
7,371,028,381.20x = 10,117,873,941.06 × 6,516,943,645.20 - Step 4: Simplify right side
7,371,028,381.20x = 65,937,614,283,125,637,120 - Step 5: Solve for x
x = 65,937,614,283,125,637,120/7,371,028,381.20 - Step 6: Final answer
x = 8,945,510,839.61
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.