Finding the Fourth Proportional to 93,312,070.90, 139,968,106.35 and 86,509,626.10
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Solution
The fourth proportional to 93,312,070.90, 139,968,106.35 and 86,509,626.10 is: 129,764,439.15
Step by Step Solution
- Step 1: Write the proportion equation
93,312,070.90 : 139,968,106.35 = 86,509,626.10 : x - Step 2: Convert to fraction form
93,312,070.90/139,968,106.35 = 86,509,626.10/x - Step 3: Cross multiply
93,312,070.90x = 139,968,106.35 × 86,509,626.10 - Step 4: Simplify right side
93,312,070.90x = 12,108,588,546,263,534 - Step 5: Solve for x
x = 12,108,588,546,263,534/93,312,070.90 - Step 6: Final answer
x = 129,764,439.15
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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.