Finding the Fourth Proportional to 154,070,829.71, 212,620,335.46 and 83,508,677.12
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Solution
The fourth proportional to 154,070,829.71, 212,620,335.46 and 83,508,677.12 is: 115,243,378.50
Step by Step Solution
- Step 1: Write the proportion equation
154,070,829.71 : 212,620,335.46 = 83,508,677.12 : x - Step 2: Convert to fraction form
154,070,829.71/212,620,335.46 = 83,508,677.12/x - Step 3: Cross multiply
154,070,829.71x = 212,620,335.46 × 83,508,677.12 - Step 4: Simplify right side
154,070,829.71x = 17,755,642,943,867,326 - Step 5: Solve for x
x = 17,755,642,943,867,326/154,070,829.71 - Step 6: Final answer
x = 115,243,378.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.