Finding the Fourth Proportional to 752,742,437.61, 1,128,725,966.92 and 337,863,593.63
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Solution
The fourth proportional to 752,742,437.61, 1,128,725,966.92 and 337,863,593.63 is: 506,621,378.50
Step by Step Solution
- Step 1: Write the proportion equation
752,742,437.61 : 1,128,725,966.92 = 337,863,593.63 : x - Step 2: Convert to fraction form
752,742,437.61/1,128,725,966.92 = 337,863,593.63/x - Step 3: Cross multiply
752,742,437.61x = 1,128,725,966.92 × 337,863,593.63 - Step 4: Simplify right side
752,742,437.61x = 381,355,411,400,599,424 - Step 5: Solve for x
x = 381,355,411,400,599,424/752,742,437.61 - Step 6: Final answer
x = 506,621,378.50
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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.