Finding the Fourth Proportional to 1,249,274,020, 1,862,742,190.28 and 1,214,950,986.16
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Solution
The fourth proportional to 1,249,274,020, 1,862,742,190.28 and 1,214,950,986.16 is: 1,811,564,496.51
Step by Step Solution
- Step 1: Write the proportion equation
1,249,274,020 : 1,862,742,190.28 = 1,214,950,986.16 : x - Step 2: Convert to fraction form
1,249,274,020/1,862,742,190.28 = 1,214,950,986.16/x - Step 3: Cross multiply
1,249,274,020x = 1,862,742,190.28 × 1,214,950,986.16 - Step 4: Simplify right side
1,249,274,020x = 2,263,140,461,042,524,416 - Step 5: Solve for x
x = 2,263,140,461,042,524,416/1,249,274,020 - Step 6: Final answer
x = 1,811,564,496.51
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.