Finding the Fourth Proportional to 42,948,984.84, 64,415,162.70 and 16,687,775.55
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Solution
The fourth proportional to 42,948,984.84, 64,415,162.70 and 16,687,775.55 is: 25,028,432.71
Step by Step Solution
- Step 1: Write the proportion equation
42,948,984.84 : 64,415,162.70 = 16,687,775.55 : x - Step 2: Convert to fraction form
42,948,984.84/64,415,162.70 = 16,687,775.55/x - Step 3: Cross multiply
42,948,984.84x = 64,415,162.70 × 16,687,775.55 - Step 4: Simplify right side
42,948,984.84x = 1,074,945,777,154,332.12 - Step 5: Solve for x
x = 1,074,945,777,154,332.12/42,948,984.84 - Step 6: Final answer
x = 25,028,432.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.