Finding the Fourth Proportional to 128,113,303.70, 192,169,955.55 and 59,025,973.70
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Solution
The fourth proportional to 128,113,303.70, 192,169,955.55 and 59,025,973.70 is: 88,538,960.55
Step by Step Solution
- Step 1: Write the proportion equation
128,113,303.70 : 192,169,955.55 = 59,025,973.70 : x - Step 2: Convert to fraction form
128,113,303.70/192,169,955.55 = 59,025,973.70/x - Step 3: Cross multiply
128,113,303.70x = 192,169,955.55 × 59,025,973.70 - Step 4: Simplify right side
128,113,303.70x = 11,343,018,742,224,470 - Step 5: Solve for x
x = 11,343,018,742,224,470/128,113,303.70 - Step 6: Final answer
x = 88,538,960.55
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1.5x scale
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.