Finding the Fourth Proportional to 260,032,128.32, 390,182,292.84 and 121,871,771.48
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Solution
The fourth proportional to 260,032,128.32, 390,182,292.84 and 121,871,771.48 is: 182,870,507.33
Step by Step Solution
- Step 1: Write the proportion equation
260,032,128.32 : 390,182,292.84 = 121,871,771.48 : x - Step 2: Convert to fraction form
260,032,128.32/390,182,292.84 = 121,871,771.48/x - Step 3: Cross multiply
260,032,128.32x = 390,182,292.84 × 121,871,771.48 - Step 4: Simplify right side
260,032,128.32x = 47,552,207,228,538,920 - Step 5: Solve for x
x = 47,552,207,228,538,920/260,032,128.32 - Step 6: Final answer
x = 182,870,507.33
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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.