Finding the Fourth Proportional to 778,534,730.55, 1,074,262,358.66 and 472,848,687.99
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Solution
The fourth proportional to 778,534,730.55, 1,074,262,358.66 and 472,848,687.99 is: 652,460,997.45
Step by Step Solution
- Step 1: Write the proportion equation
778,534,730.55 : 1,074,262,358.66 = 472,848,687.99 : x - Step 2: Convert to fraction form
778,534,730.55/1,074,262,358.66 = 472,848,687.99/x - Step 3: Cross multiply
778,534,730.55x = 1,074,262,358.66 × 472,848,687.99 - Step 4: Simplify right side
778,534,730.55x = 507,963,546,847,059,584 - Step 5: Solve for x
x = 507,963,546,847,059,584/778,534,730.55 - Step 6: Final answer
x = 652,460,997.45
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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.