Finding the Fourth Proportional to 129,031,835.20, 193,547,752.80 and 57,368,219.20
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Solution
The fourth proportional to 129,031,835.20, 193,547,752.80 and 57,368,219.20 is: 86,052,328.80
Step by Step Solution
- Step 1: Write the proportion equation
129,031,835.20 : 193,547,752.80 = 57,368,219.20 : x - Step 2: Convert to fraction form
129,031,835.20/193,547,752.80 = 57,368,219.20/x - Step 3: Cross multiply
129,031,835.20x = 193,547,752.80 × 57,368,219.20 - Step 4: Simplify right side
129,031,835.20x = 11,103,489,908,297,816 - Step 5: Solve for x
x = 11,103,489,908,297,816/129,031,835.20 - Step 6: Final answer
x = 86,052,328.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.