Finding the Fourth Proportional to 249,113,497.10, 343,787,070 and 143,266,995.05
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Solution
The fourth proportional to 249,113,497.10, 343,787,070 and 143,266,995.05 is: 197,714,459.58
Step by Step Solution
- Step 1: Write the proportion equation
249,113,497.10 : 343,787,070 = 143,266,995.05 : x - Step 2: Convert to fraction form
249,113,497.10/343,787,070 = 143,266,995.05/x - Step 3: Cross multiply
249,113,497.10x = 343,787,070 × 143,266,995.05 - Step 4: Simplify right side
249,113,497.10x = 49,253,340,454,225,064 - Step 5: Solve for x
x = 49,253,340,454,225,064/249,113,497.10 - Step 6: Final answer
x = 197,714,459.58
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1.5x scale
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.