Finding the Fourth Proportional to 63,456,438.78, 87,596,671.80 and 42,857,785.62
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Solution
The fourth proportional to 63,456,438.78, 87,596,671.80 and 42,857,785.62 is: 59,161,835.32
Step by Step Solution
- Step 1: Write the proportion equation
63,456,438.78 : 87,596,671.80 = 42,857,785.62 : x - Step 2: Convert to fraction form
63,456,438.78/87,596,671.80 = 42,857,785.62/x - Step 3: Cross multiply
63,456,438.78x = 87,596,671.80 × 42,857,785.62 - Step 4: Simplify right side
63,456,438.78x = 3,754,199,381,029,899 - Step 5: Solve for x
x = 3,754,199,381,029,899/63,456,438.78 - Step 6: Final answer
x = 59,161,835.32
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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.