Finding the Fourth Proportional to 283,943,215.28, 391,841,899.08 and 153,563,023.28
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Solution
The fourth proportional to 283,943,215.28, 391,841,899.08 and 153,563,023.28 is: 211,917,113.82
Step by Step Solution
- Step 1: Write the proportion equation
283,943,215.28 : 391,841,899.08 = 153,563,023.28 : x - Step 2: Convert to fraction form
283,943,215.28/391,841,899.08 = 153,563,023.28/x - Step 3: Cross multiply
283,943,215.28x = 391,841,899.08 × 153,563,023.28 - Step 4: Simplify right side
283,943,215.28x = 60,172,426,670,501,448 - Step 5: Solve for x
x = 60,172,426,670,501,448/283,943,215.28 - Step 6: Final answer
x = 211,917,113.82
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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.