Finding the Fourth Proportional to 368,748,793.80, 553,123,190.70 and 351,742,681.80
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Solution
The fourth proportional to 368,748,793.80, 553,123,190.70 and 351,742,681.80 is: 527,614,022.70
Step by Step Solution
- Step 1: Write the proportion equation
368,748,793.80 : 553,123,190.70 = 351,742,681.80 : x - Step 2: Convert to fraction form
368,748,793.80/553,123,190.70 = 351,742,681.80/x - Step 3: Cross multiply
368,748,793.80x = 553,123,190.70 × 351,742,681.80 - Step 4: Simplify right side
368,748,793.80x = 194,557,034,462,590,848 - Step 5: Solve for x
x = 194,557,034,462,590,848/368,748,793.80 - Step 6: Final answer
x = 527,614,022.70
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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.