Home / 193,345,602.80-290,018,404.20-78,333,897.20

Finding the Fourth Proportional to 193,345,602.80, 290,018,404.20 and 78,333,897.20

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Solution

The fourth proportional to 193,345,602.80, 290,018,404.20 and 78,333,897.20 is: 117,500,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,345,602.80 : 290,018,404.20 = 78,333,897.20 : x
  2. Step 2: Convert to fraction form
    193,345,602.80/290,018,404.20 = 78,333,897.20/x
  3. Step 3: Cross multiply
    193,345,602.80x = 290,018,404.20 × 78,333,897.20
  4. Step 4: Simplify right side
    193,345,602.80x = 22,718,271,860,710,848
  5. Step 5: Solve for x
    x = 22,718,271,860,710,848/193,345,602.80
  6. Step 6: Final answer
    x = 117,500,845.80

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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.