Finding the Fourth Proportional to 963,249,407.48, 1,329,394,453.08 and 539,977,389.14
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Solution
The fourth proportional to 963,249,407.48, 1,329,394,453.08 and 539,977,389.14 is: 745,230,612.48
Step by Step Solution
- Step 1: Write the proportion equation
963,249,407.48 : 1,329,394,453.08 = 539,977,389.14 : x - Step 2: Convert to fraction form
963,249,407.48/1,329,394,453.08 = 539,977,389.14/x - Step 3: Cross multiply
963,249,407.48x = 1,329,394,453.08 × 539,977,389.14 - Step 4: Simplify right side
963,249,407.48x = 717,842,945,911,336,576 - Step 5: Solve for x
x = 717,842,945,911,336,576/963,249,407.48 - Step 6: Final answer
x = 745,230,612.48
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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.