Home / 40,368,080.16-55,780,821.09-28,745,465.58

Finding the Fourth Proportional to 40,368,080.16, 55,780,821.09 and 28,745,465.58

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Solution

The fourth proportional to 40,368,080.16, 55,780,821.09 and 28,745,465.58 is: 39,720,632.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,368,080.16 : 55,780,821.09 = 28,745,465.58 : x
  2. Step 2: Convert to fraction form
    40,368,080.16/55,780,821.09 = 28,745,465.58/x
  3. Step 3: Cross multiply
    40,368,080.16x = 55,780,821.09 × 28,745,465.58
  4. Step 4: Simplify right side
    40,368,080.16x = 1,603,445,672,666,733
  5. Step 5: Solve for x
    x = 1,603,445,672,666,733/40,368,080.16
  6. Step 6: Final answer
    x = 39,720,632.40

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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.