Finding the Fourth Proportional to 157,464,211.30, 236,196,316.95 and 128,742,777.70
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Solution
The fourth proportional to 157,464,211.30, 236,196,316.95 and 128,742,777.70 is: 193,114,166.55
Step by Step Solution
- Step 1: Write the proportion equation
157,464,211.30 : 236,196,316.95 = 128,742,777.70 : x - Step 2: Convert to fraction form
157,464,211.30/236,196,316.95 = 128,742,777.70/x - Step 3: Cross multiply
157,464,211.30x = 236,196,316.95 × 128,742,777.70 - Step 4: Simplify right side
157,464,211.30x = 30,408,569,926,652,592 - Step 5: Solve for x
x = 30,408,569,926,652,592/157,464,211.30 - Step 6: Final answer
x = 193,114,166.55
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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.