Home / 319,289,323.40-478,933,985.10-242,761,819.40

Finding the Fourth Proportional to 319,289,323.40, 478,933,985.10 and 242,761,819.40

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Solution

The fourth proportional to 319,289,323.40, 478,933,985.10 and 242,761,819.40 is: 364,142,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,289,323.40 : 478,933,985.10 = 242,761,819.40 : x
  2. Step 2: Convert to fraction form
    319,289,323.40/478,933,985.10 = 242,761,819.40/x
  3. Step 3: Cross multiply
    319,289,323.40x = 478,933,985.10 × 242,761,819.40
  4. Step 4: Simplify right side
    319,289,323.40x = 116,266,885,595,368,496
  5. Step 5: Solve for x
    x = 116,266,885,595,368,496/319,289,323.40
  6. Step 6: Final answer
    x = 364,142,729.10

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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.