Finding the Fourth Proportional to 84,249,758.10, 126,374,637.15 and 74,683,820.10
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Solution
The fourth proportional to 84,249,758.10, 126,374,637.15 and 74,683,820.10 is: 112,025,730.15
Step by Step Solution
- Step 1: Write the proportion equation
84,249,758.10 : 126,374,637.15 = 74,683,820.10 : x - Step 2: Convert to fraction form
84,249,758.10/126,374,637.15 = 74,683,820.10/x - Step 3: Cross multiply
84,249,758.10x = 126,374,637.15 × 74,683,820.10 - Step 4: Simplify right side
84,249,758.10x = 9,438,140,666,113,376 - Step 5: Solve for x
x = 9,438,140,666,113,376/84,249,758.10 - Step 6: Final answer
x = 112,025,730.15
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1.5x scale
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.