Finding the Fourth Proportional to 97,009,411.20, 145,514,116.80 and 48,494,752.80
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Solution
The fourth proportional to 97,009,411.20, 145,514,116.80 and 48,494,752.80 is: 72,742,129.20
Step by Step Solution
- Step 1: Write the proportion equation
97,009,411.20 : 145,514,116.80 = 48,494,752.80 : x - Step 2: Convert to fraction form
97,009,411.20/145,514,116.80 = 48,494,752.80/x - Step 3: Cross multiply
97,009,411.20x = 145,514,116.80 × 48,494,752.80 - Step 4: Simplify right side
97,009,411.20x = 7,056,671,123,126,327 - Step 5: Solve for x
x = 7,056,671,123,126,327/97,009,411.20 - Step 6: Final answer
x = 72,742,129.20
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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.