Finding the Fourth Proportional to 621,228,680,622.99, 931,019,257,466.34 and 319,029,075,210.48
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Solution
The fourth proportional to 621,228,680,622.99, 931,019,257,466.34 and 319,029,075,210.48 is: 478,120,572,950.32
Step by Step Solution
- Step 1: Write the proportion equation
621,228,680,622.99 : 931,019,257,466.34 = 319,029,075,210.48 : x - Step 2: Convert to fraction form
621,228,680,622.99/931,019,257,466.34 = 319,029,075,210.48/x - Step 3: Cross multiply
621,228,680,622.99x = 931,019,257,466.34 × 319,029,075,210.48 - Step 4: Simplify right side
621,228,680,622.99x = 297,022,212,712,634,184,105,984 - Step 5: Solve for x
x = 297,022,212,712,634,184,105,984/621,228,680,622.99 - Step 6: Final answer
x = 478,120,572,950.32
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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.