Home / 509,336,670.40-764,005,005.60-145,831,026.40

Finding the Fourth Proportional to 509,336,670.40, 764,005,005.60 and 145,831,026.40

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Solution

The fourth proportional to 509,336,670.40, 764,005,005.60 and 145,831,026.40 is: 218,746,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,336,670.40 : 764,005,005.60 = 145,831,026.40 : x
  2. Step 2: Convert to fraction form
    509,336,670.40/764,005,005.60 = 145,831,026.40/x
  3. Step 3: Cross multiply
    509,336,670.40x = 764,005,005.60 × 145,831,026.40
  4. Step 4: Simplify right side
    509,336,670.40x = 111,415,634,141,385,760
  5. Step 5: Solve for x
    x = 111,415,634,141,385,760/509,336,670.40
  6. Step 6: Final answer
    x = 218,746,539.60

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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.