Home / 319,123,739.99-478,831,056.22-163,786,632.30

Finding the Fourth Proportional to 319,123,739.99, 478,831,056.22 and 163,786,632.30

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Solution

The fourth proportional to 319,123,739.99, 478,831,056.22 and 163,786,632.30 is: 245,754,597.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,123,739.99 : 478,831,056.22 = 163,786,632.30 : x
  2. Step 2: Convert to fraction form
    319,123,739.99/478,831,056.22 = 163,786,632.30/x
  3. Step 3: Cross multiply
    319,123,739.99x = 478,831,056.22 × 163,786,632.30
  4. Step 4: Simplify right side
    319,123,739.99x = 78,426,126,140,560,672
  5. Step 5: Solve for x
    x = 78,426,126,140,560,672/319,123,739.99
  6. Step 6: Final answer
    x = 245,754,597.08

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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.