Finding the Fourth Proportional to 752,742,434.98, 1,128,725,962.98 and 337,863,590.99
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Solution
The fourth proportional to 752,742,434.98, 1,128,725,962.98 and 337,863,590.99 is: 506,621,374.56
Step by Step Solution
- Step 1: Write the proportion equation
752,742,434.98 : 1,128,725,962.98 = 337,863,590.99 : x - Step 2: Convert to fraction form
752,742,434.98/1,128,725,962.98 = 337,863,590.99/x - Step 3: Cross multiply
752,742,434.98x = 1,128,725,962.98 × 337,863,590.99 - Step 4: Simplify right side
752,742,434.98x = 381,355,407,101,609,280 - Step 5: Solve for x
x = 381,355,407,101,609,280/752,742,434.98 - Step 6: Final answer
x = 506,621,374.56
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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.