Finding the Fourth Proportional to 86,688,323.04, 130,012,586.16 and 51,683,342.08
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Solution
The fourth proportional to 86,688,323.04, 130,012,586.16 and 51,683,342.08 is: 77,513,149.75
Step by Step Solution
- Step 1: Write the proportion equation
86,688,323.04 : 130,012,586.16 = 51,683,342.08 : x - Step 2: Convert to fraction form
86,688,323.04/130,012,586.16 = 51,683,342.08/x - Step 3: Cross multiply
86,688,323.04x = 130,012,586.16 × 51,683,342.08 - Step 4: Simplify right side
86,688,323.04x = 6,719,484,965,212,753 - Step 5: Solve for x
x = 6,719,484,965,212,753/86,688,323.04 - Step 6: Final answer
x = 77,513,149.75
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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.