Finding the Fourth Proportional to 106,742,916.74, 159,931,410.66 and 71,662,328.66
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Solution
The fourth proportional to 106,742,916.74, 159,931,410.66 and 71,662,328.66 is: 107,370,659.00
Step by Step Solution
- Step 1: Write the proportion equation
106,742,916.74 : 159,931,410.66 = 71,662,328.66 : x - Step 2: Convert to fraction form
106,742,916.74/159,931,410.66 = 71,662,328.66/x - Step 3: Cross multiply
106,742,916.74x = 159,931,410.66 × 71,662,328.66 - Step 4: Simplify right side
106,742,916.74x = 11,461,057,312,974,690 - Step 5: Solve for x
x = 11,461,057,312,974,690/106,742,916.74 - Step 6: Final answer
x = 107,370,659.00
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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.