Finding the Fourth Proportional to 42,708,226.58, 58,937,038.37 and 23,128,660.74
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Solution
The fourth proportional to 42,708,226.58, 58,937,038.37 and 23,128,660.74 is: 31,917,381.61
Step by Step Solution
- Step 1: Write the proportion equation
42,708,226.58 : 58,937,038.37 = 23,128,660.74 : x - Step 2: Convert to fraction form
42,708,226.58/58,937,038.37 = 23,128,660.74/x - Step 3: Cross multiply
42,708,226.58x = 58,937,038.37 × 23,128,660.74 - Step 4: Simplify right side
42,708,226.58x = 1,363,134,765,364,449.25 - Step 5: Solve for x
x = 1,363,134,765,364,449.25/42,708,226.58 - Step 6: Final answer
x = 31,917,381.61
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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.