Home / 319,308,049.60-478,962,074.40-137,909,521.60

Finding the Fourth Proportional to 319,308,049.60, 478,962,074.40 and 137,909,521.60

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Solution

The fourth proportional to 319,308,049.60, 478,962,074.40 and 137,909,521.60 is: 206,864,282.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,308,049.60 : 478,962,074.40 = 137,909,521.60 : x
  2. Step 2: Convert to fraction form
    319,308,049.60/478,962,074.40 = 137,909,521.60/x
  3. Step 3: Cross multiply
    319,308,049.60x = 478,962,074.40 × 137,909,521.60
  4. Step 4: Simplify right side
    319,308,049.60x = 66,053,430,545,047,600
  5. Step 5: Solve for x
    x = 66,053,430,545,047,600/319,308,049.60
  6. Step 6: Final answer
    x = 206,864,282.40

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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.