Finding the Fourth Proportional to 135,660,545.12, 187,211,644.52 and 76,113,620.93
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Solution
The fourth proportional to 135,660,545.12, 187,211,644.52 and 76,113,620.93 is: 105,036,848.64
Step by Step Solution
- Step 1: Write the proportion equation
135,660,545.12 : 187,211,644.52 = 76,113,620.93 : x - Step 2: Convert to fraction form
135,660,545.12/187,211,644.52 = 76,113,620.93/x - Step 3: Cross multiply
135,660,545.12x = 187,211,644.52 × 76,113,620.93 - Step 4: Simplify right side
135,660,545.12x = 14,249,356,143,360,564 - Step 5: Solve for x
x = 14,249,356,143,360,564/135,660,545.12 - Step 6: Final answer
x = 105,036,848.64
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.