Home / 42,704,025.60-64,056,038.40-40,719,979.20

Finding the Fourth Proportional to 42,704,025.60, 64,056,038.40 and 40,719,979.20

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Solution

The fourth proportional to 42,704,025.60, 64,056,038.40 and 40,719,979.20 is: 61,079,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,704,025.60 : 64,056,038.40 = 40,719,979.20 : x
  2. Step 2: Convert to fraction form
    42,704,025.60/64,056,038.40 = 40,719,979.20/x
  3. Step 3: Cross multiply
    42,704,025.60x = 64,056,038.40 × 40,719,979.20
  4. Step 4: Simplify right side
    42,704,025.60x = 2,608,360,551,282,401.50
  5. Step 5: Solve for x
    x = 2,608,360,551,282,401.50/42,704,025.60
  6. Step 6: Final answer
    x = 61,079,968.80

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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.