Finding the Fourth Proportional to 108,390,421.95, 149,576,905.42 and 58,829,731.98
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Solution
The fourth proportional to 108,390,421.95, 149,576,905.42 and 58,829,731.98 is: 81,184,011.45
Step by Step Solution
- Step 1: Write the proportion equation
108,390,421.95 : 149,576,905.42 = 58,829,731.98 : x - Step 2: Convert to fraction form
108,390,421.95/149,576,905.42 = 58,829,731.98/x - Step 3: Cross multiply
108,390,421.95x = 149,576,905.42 × 58,829,731.98 - Step 4: Simplify right side
108,390,421.95x = 8,799,569,256,256,408 - Step 5: Solve for x
x = 8,799,569,256,256,408/108,390,421.95 - Step 6: Final answer
x = 81,184,011.45
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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.