Finding the Fourth Proportional to 7,115,095,954.17, 9,818,833,347.47 and 3,943,484,631.09
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Solution
The fourth proportional to 7,115,095,954.17, 9,818,833,347.47 and 3,943,484,631.09 is: 5,442,009,306.74
Step by Step Solution
- Step 1: Write the proportion equation
7,115,095,954.17 : 9,818,833,347.47 = 3,943,484,631.09 : x - Step 2: Convert to fraction form
7,115,095,954.17/9,818,833,347.47 = 3,943,484,631.09/x - Step 3: Cross multiply
7,115,095,954.17x = 9,818,833,347.47 × 3,943,484,631.09 - Step 4: Simplify right side
7,115,095,954.17x = 38,720,418,400,962,207,744 - Step 5: Solve for x
x = 38,720,418,400,962,207,744/7,115,095,954.17 - Step 6: Final answer
x = 5,442,009,306.74
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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.