Finding the Fourth Proportional to 778,534,731.55, 1,074,262,360.03 and 472,848,688.99
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Solution
The fourth proportional to 778,534,731.55, 1,074,262,360.03 and 472,848,688.99 is: 652,460,998.83
Step by Step Solution
- Step 1: Write the proportion equation
778,534,731.55 : 1,074,262,360.03 = 472,848,688.99 : x - Step 2: Convert to fraction form
778,534,731.55/1,074,262,360.03 = 472,848,688.99/x - Step 3: Cross multiply
778,534,731.55x = 1,074,262,360.03 × 472,848,688.99 - Step 4: Simplify right side
778,534,731.55x = 507,963,548,571,488,896 - Step 5: Solve for x
x = 507,963,548,571,488,896/778,534,731.55 - Step 6: Final answer
x = 652,460,998.83
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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.