Home / 319,289,350.40-478,934,025.60-242,761,846.40

Finding the Fourth Proportional to 319,289,350.40, 478,934,025.60 and 242,761,846.40

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Solution

The fourth proportional to 319,289,350.40, 478,934,025.60 and 242,761,846.40 is: 364,142,769.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,289,350.40 : 478,934,025.60 = 242,761,846.40 : x
  2. Step 2: Convert to fraction form
    319,289,350.40/478,934,025.60 = 242,761,846.40/x
  3. Step 3: Cross multiply
    319,289,350.40x = 478,934,025.60 × 242,761,846.40
  4. Step 4: Simplify right side
    319,289,350.40x = 116,266,908,358,440,880
  5. Step 5: Solve for x
    x = 116,266,908,358,440,880/319,289,350.40
  6. Step 6: Final answer
    x = 364,142,769.60

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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.