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Finding the Fourth Proportional to 319,764,393.89, 479,692,345.24 and 98,454,459.01

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Solution

The fourth proportional to 319,764,393.89, 479,692,345.24 and 98,454,459.01 is: 147,695,776.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,764,393.89 : 479,692,345.24 = 98,454,459.01 : x
  2. Step 2: Convert to fraction form
    319,764,393.89/479,692,345.24 = 98,454,459.01/x
  3. Step 3: Cross multiply
    319,764,393.89x = 479,692,345.24 × 98,454,459.01
  4. Step 4: Simplify right side
    319,764,393.89x = 47,227,850,340,889,248
  5. Step 5: Solve for x
    x = 47,227,850,340,889,248/319,764,393.89
  6. Step 6: Final answer
    x = 147,695,776.15

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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.