Finding the Fourth Proportional to 249,718,139.20, 374,427,909.60 and 128,785,787.20
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Solution
The fourth proportional to 249,718,139.20, 374,427,909.60 and 128,785,787.20 is: 193,101,683.53
Step by Step Solution
- Step 1: Write the proportion equation
249,718,139.20 : 374,427,909.60 = 128,785,787.20 : x - Step 2: Convert to fraction form
249,718,139.20/374,427,909.60 = 128,785,787.20/x - Step 3: Cross multiply
249,718,139.20x = 374,427,909.60 × 128,785,787.20 - Step 4: Simplify right side
249,718,139.20x = 48,220,993,087,486,440 - Step 5: Solve for x
x = 48,220,993,087,486,440/249,718,139.20 - Step 6: Final answer
x = 193,101,683.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.