Home / 687,197,848.32-948,325,059.06-373,926,664.84

Finding the Fourth Proportional to 687,197,848.32, 948,325,059.06 and 373,926,664.84

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Solution

The fourth proportional to 687,197,848.32, 948,325,059.06 and 373,926,664.84 is: 516,014,459.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,197,848.32 : 948,325,059.06 = 373,926,664.84 : x
  2. Step 2: Convert to fraction form
    687,197,848.32/948,325,059.06 = 373,926,664.84/x
  3. Step 3: Cross multiply
    687,197,848.32x = 948,325,059.06 × 373,926,664.84
  4. Step 4: Simplify right side
    687,197,848.32x = 354,604,026,518,501,760
  5. Step 5: Solve for x
    x = 354,604,026,518,501,760/687,197,848.32
  6. Step 6: Final answer
    x = 516,014,459.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.