Home / 139,758,655.32-209,630,355.39-42,714,330.12

Finding the Fourth Proportional to 139,758,655.32, 209,630,355.39 and 42,714,330.12

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Solution

The fourth proportional to 139,758,655.32, 209,630,355.39 and 42,714,330.12 is: 64,069,163.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,758,655.32 : 209,630,355.39 = 42,714,330.12 : x
  2. Step 2: Convert to fraction form
    139,758,655.32/209,630,355.39 = 42,714,330.12/x
  3. Step 3: Cross multiply
    139,758,655.32x = 209,630,355.39 × 42,714,330.12
  4. Step 4: Simplify right side
    139,758,655.32x = 8,954,220,203,301,380
  5. Step 5: Solve for x
    x = 8,954,220,203,301,380/139,758,655.32
  6. Step 6: Final answer
    x = 64,069,163.97

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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.