Home / 55,319,145.40-82,978,718.10-26,621,331.40

Finding the Fourth Proportional to 55,319,145.40, 82,978,718.10 and 26,621,331.40

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Solution

The fourth proportional to 55,319,145.40, 82,978,718.10 and 26,621,331.40 is: 39,931,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,319,145.40 : 82,978,718.10 = 26,621,331.40 : x
  2. Step 2: Convert to fraction form
    55,319,145.40/82,978,718.10 = 26,621,331.40/x
  3. Step 3: Cross multiply
    55,319,145.40x = 82,978,718.10 × 26,621,331.40
  4. Step 4: Simplify right side
    55,319,145.40x = 2,209,003,953,687,278
  5. Step 5: Solve for x
    x = 2,209,003,953,687,278/55,319,145.40
  6. Step 6: Final answer
    x = 39,931,997.10

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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.