Home / 42,684,820.40-64,027,230.60-39,157,626.80

Finding the Fourth Proportional to 42,684,820.40, 64,027,230.60 and 39,157,626.80

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Solution

The fourth proportional to 42,684,820.40, 64,027,230.60 and 39,157,626.80 is: 58,736,440.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,684,820.40 : 64,027,230.60 = 39,157,626.80 : x
  2. Step 2: Convert to fraction form
    42,684,820.40/64,027,230.60 = 39,157,626.80/x
  3. Step 3: Cross multiply
    42,684,820.40x = 64,027,230.60 × 39,157,626.80
  4. Step 4: Simplify right side
    42,684,820.40x = 2,507,154,400,872,340
  5. Step 5: Solve for x
    x = 2,507,154,400,872,340/42,684,820.40
  6. Step 6: Final answer
    x = 58,736,440.20

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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.