Finding the Fourth Proportional to 93,312,128.80, 139,968,193.20 and 87,265,511.20
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Solution
The fourth proportional to 93,312,128.80, 139,968,193.20 and 87,265,511.20 is: 130,898,266.80
Step by Step Solution
- Step 1: Write the proportion equation
93,312,128.80 : 139,968,193.20 = 87,265,511.20 : x - Step 2: Convert to fraction form
93,312,128.80/139,968,193.20 = 87,265,511.20/x - Step 3: Cross multiply
93,312,128.80x = 139,968,193.20 × 87,265,511.20 - Step 4: Simplify right side
93,312,128.80x = 12,214,395,931,338,364 - Step 5: Solve for x
x = 12,214,395,931,338,364/93,312,128.80 - Step 6: Final answer
x = 130,898,266.80
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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.