Finding the Fourth Proportional to 287,130,158.02, 396,237,602.37 and 156,749,966.02
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Solution
The fourth proportional to 287,130,158.02, 396,237,602.37 and 156,749,966.02 is: 216,313,852.70
Step by Step Solution
- Step 1: Write the proportion equation
287,130,158.02 : 396,237,602.37 = 156,749,966.02 : x - Step 2: Convert to fraction form
287,130,158.02/396,237,602.37 = 156,749,966.02/x - Step 3: Cross multiply
287,130,158.02x = 396,237,602.37 × 156,749,966.02 - Step 4: Simplify right side
287,130,158.02x = 62,110,230,707,343,776 - Step 5: Solve for x
x = 62,110,230,707,343,776/287,130,158.02 - Step 6: Final answer
x = 216,313,852.70
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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.