Finding the Fourth Proportional to 13,357,931.06, 18,433,980.36 and 7,246,359.56
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Solution
The fourth proportional to 13,357,931.06, 18,433,980.36 and 7,246,359.56 is: 9,999,995.45
Step by Step Solution
- Step 1: Write the proportion equation
13,357,931.06 : 18,433,980.36 = 7,246,359.56 : x - Step 2: Convert to fraction form
13,357,931.06/18,433,980.36 = 7,246,359.56/x - Step 3: Cross multiply
13,357,931.06x = 18,433,980.36 × 7,246,359.56 - Step 4: Simplify right side
13,357,931.06x = 133,579,249,810,538.23 - Step 5: Solve for x
x = 133,579,249,810,538.23/13,357,931.06 - Step 6: Final answer
x = 9,999,995.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.