Finding the Fourth Proportional to 652,742,462.72, 979,220,047.80 and 192,727,133.12
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Solution
The fourth proportional to 652,742,462.72, 979,220,047.80 and 192,727,133.12 is: 289,122,101.42
Step by Step Solution
- Step 1: Write the proportion equation
652,742,462.72 : 979,220,047.80 = 192,727,133.12 : x - Step 2: Convert to fraction form
652,742,462.72/979,220,047.80 = 192,727,133.12/x - Step 3: Cross multiply
652,742,462.72x = 979,220,047.80 × 192,727,133.12 - Step 4: Simplify right side
652,742,462.72x = 188,722,272,506,123,360 - Step 5: Solve for x
x = 188,722,272,506,123,360/652,742,462.72 - Step 6: Final answer
x = 289,122,101.42
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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.