Finding the Fourth Proportional to 93,312,455.30, 139,968,682.95 and 80,547,373.70
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Solution
The fourth proportional to 93,312,455.30, 139,968,682.95 and 80,547,373.70 is: 120,821,060.55
Step by Step Solution
- Step 1: Write the proportion equation
93,312,455.30 : 139,968,682.95 = 80,547,373.70 : x - Step 2: Convert to fraction form
93,312,455.30/139,968,682.95 = 80,547,373.70/x - Step 3: Cross multiply
93,312,455.30x = 139,968,682.95 × 80,547,373.70 - Step 4: Simplify right side
93,312,455.30x = 11,274,109,811,870,468 - Step 5: Solve for x
x = 11,274,109,811,870,468/93,312,455.30 - Step 6: Final answer
x = 120,821,060.55
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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.