Finding the Fourth Proportional to 70,315,943.58, 97,026,800.67 and 40,547,691.09
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Solution
The fourth proportional to 70,315,943.58, 97,026,800.67 and 40,547,691.09 is: 55,950,507.68
Step by Step Solution
- Step 1: Write the proportion equation
70,315,943.58 : 97,026,800.67 = 40,547,691.09 : x - Step 2: Convert to fraction form
70,315,943.58/97,026,800.67 = 40,547,691.09/x - Step 3: Cross multiply
70,315,943.58x = 97,026,800.67 × 40,547,691.09 - Step 4: Simplify right side
70,315,943.58x = 3,934,212,741,018,165.50 - Step 5: Solve for x
x = 3,934,212,741,018,165.50/70,315,943.58 - Step 6: Final answer
x = 55,950,507.68
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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.