Finding the Fourth Proportional to 93,312,073.70, 139,968,110.55 and 86,934,781.70
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Solution
The fourth proportional to 93,312,073.70, 139,968,110.55 and 86,934,781.70 is: 130,402,172.55
Step by Step Solution
- Step 1: Write the proportion equation
93,312,073.70 : 139,968,110.55 = 86,934,781.70 : x - Step 2: Convert to fraction form
93,312,073.70/139,968,110.55 = 86,934,781.70/x - Step 3: Cross multiply
93,312,073.70x = 139,968,110.55 × 86,934,781.70 - Step 4: Simplify right side
93,312,073.70x = 12,168,097,135,625,718 - Step 5: Solve for x
x = 12,168,097,135,625,718/93,312,073.70 - Step 6: Final answer
x = 130,402,172.55
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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.