Home / 319,289,343.40-478,934,015.10-242,761,839.40

Finding the Fourth Proportional to 319,289,343.40, 478,934,015.10 and 242,761,839.40

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Solution

The fourth proportional to 319,289,343.40, 478,934,015.10 and 242,761,839.40 is: 364,142,759.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,289,343.40 : 478,934,015.10 = 242,761,839.40 : x
  2. Step 2: Convert to fraction form
    319,289,343.40/478,934,015.10 = 242,761,839.40/x
  3. Step 3: Cross multiply
    319,289,343.40x = 478,934,015.10 × 242,761,839.40
  4. Step 4: Simplify right side
    319,289,343.40x = 116,266,902,456,903,376
  5. Step 5: Solve for x
    x = 116,266,902,456,903,376/319,289,343.40
  6. Step 6: Final answer
    x = 364,142,759.10

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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.