Home / 79,116,820.20-118,675,230.30-77,699,644.20

Finding the Fourth Proportional to 79,116,820.20, 118,675,230.30 and 77,699,644.20

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Solution

The fourth proportional to 79,116,820.20, 118,675,230.30 and 77,699,644.20 is: 116,549,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,116,820.20 : 118,675,230.30 = 77,699,644.20 : x
  2. Step 2: Convert to fraction form
    79,116,820.20/118,675,230.30 = 77,699,644.20/x
  3. Step 3: Cross multiply
    79,116,820.20x = 118,675,230.30 × 77,699,644.20
  4. Step 4: Simplify right side
    79,116,820.20x = 9,221,023,169,663,060
  5. Step 5: Solve for x
    x = 9,221,023,169,663,060/79,116,820.20
  6. Step 6: Final answer
    x = 116,549,466.30

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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.