Finding the Fourth Proportional to 458,327,355.12, 687,484,228.68 and 113,280,963.12
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Solution
The fourth proportional to 458,327,355.12, 687,484,228.68 and 113,280,963.12 is: 169,919,762.99
Step by Step Solution
- Step 1: Write the proportion equation
458,327,355.12 : 687,484,228.68 = 113,280,963.12 : x - Step 2: Convert to fraction form
458,327,355.12/687,484,228.68 = 113,280,963.12/x - Step 3: Cross multiply
458,327,355.12x = 687,484,228.68 × 113,280,963.12 - Step 4: Simplify right side
458,327,355.12x = 77,878,875,554,680,720 - Step 5: Solve for x
x = 77,878,875,554,680,720/458,327,355.12 - Step 6: Final answer
x = 169,919,762.99
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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.