Finding the Fourth Proportional to 1,255,238,407.84, 1,883,129,992.08 and 381,817,076.08
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Solution
The fourth proportional to 1,255,238,407.84, 1,883,129,992.08 and 381,817,076.08 is: 572,808,466.47
Step by Step Solution
- Step 1: Write the proportion equation
1,255,238,407.84 : 1,883,129,992.08 = 381,817,076.08 : x - Step 2: Convert to fraction form
1,255,238,407.84/1,883,129,992.08 = 381,817,076.08/x - Step 3: Cross multiply
1,255,238,407.84x = 1,883,129,992.08 × 381,817,076.08 - Step 4: Simplify right side
1,255,238,407.84x = 719,011,187,454,539,136 - Step 5: Solve for x
x = 719,011,187,454,539,136/1,255,238,407.84 - Step 6: Final answer
x = 572,808,466.47
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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.