Home / 28,719,005.10-43,078,507.65-20,656,848.30

Finding the Fourth Proportional to 28,719,005.10, 43,078,507.65 and 20,656,848.30

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Solution

The fourth proportional to 28,719,005.10, 43,078,507.65 and 20,656,848.30 is: 30,985,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719,005.10 : 43,078,507.65 = 20,656,848.30 : x
  2. Step 2: Convert to fraction form
    28,719,005.10/43,078,507.65 = 20,656,848.30/x
  3. Step 3: Cross multiply
    28,719,005.10x = 43,078,507.65 × 20,656,848.30
  4. Step 4: Simplify right side
    28,719,005.10x = 889,866,197,516,439.50
  5. Step 5: Solve for x
    x = 889,866,197,516,439.50/28,719,005.10
  6. Step 6: Final answer
    x = 30,985,272.45

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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.