Finding the Fourth Proportional to 28,353,406.50, 39,127,897.80 and 16,130,263.50
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Solution
The fourth proportional to 28,353,406.50, 39,127,897.80 and 16,130,263.50 is: 22,259,875.61
Step by Step Solution
- Step 1: Write the proportion equation
28,353,406.50 : 39,127,897.80 = 16,130,263.50 : x - Step 2: Convert to fraction form
28,353,406.50/39,127,897.80 = 16,130,263.50/x - Step 3: Cross multiply
28,353,406.50x = 39,127,897.80 × 16,130,263.50 - Step 4: Simplify right side
28,353,406.50x = 631,143,301,715,070.25 - Step 5: Solve for x
x = 631,143,301,715,070.25/28,353,406.50 - Step 6: Final answer
x = 22,259,875.61
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.