Finding the Fourth Proportional to 70,983,248.64, 97,961,419.20 and 40,032,124.80
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Solution
The fourth proportional to 70,983,248.64, 97,961,419.20 and 40,032,124.80 is: 55,246,890.42
Step by Step Solution
- Step 1: Write the proportion equation
70,983,248.64 : 97,961,419.20 = 40,032,124.80 : x - Step 2: Convert to fraction form
70,983,248.64/97,961,419.20 = 40,032,124.80/x - Step 3: Cross multiply
70,983,248.64x = 97,961,419.20 × 40,032,124.80 - Step 4: Simplify right side
70,983,248.64x = 3,921,603,758,999,516 - Step 5: Solve for x
x = 3,921,603,758,999,516/70,983,248.64 - Step 6: Final answer
x = 55,246,890.42
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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.