Home / 79,488,034.20-119,232,051.30-70,977,979.80

Finding the Fourth Proportional to 79,488,034.20, 119,232,051.30 and 70,977,979.80

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Solution

The fourth proportional to 79,488,034.20, 119,232,051.30 and 70,977,979.80 is: 106,466,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,488,034.20 : 119,232,051.30 = 70,977,979.80 : x
  2. Step 2: Convert to fraction form
    79,488,034.20/119,232,051.30 = 70,977,979.80/x
  3. Step 3: Cross multiply
    79,488,034.20x = 119,232,051.30 × 70,977,979.80
  4. Step 4: Simplify right side
    79,488,034.20x = 8,462,850,128,683,963
  5. Step 5: Solve for x
    x = 8,462,850,128,683,963/79,488,034.20
  6. Step 6: Final answer
    x = 106,466,969.70

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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.