Home / 79,563,966.40-119,345,949.60-28,447,652.80

Finding the Fourth Proportional to 79,563,966.40, 119,345,949.60 and 28,447,652.80

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Solution

The fourth proportional to 79,563,966.40, 119,345,949.60 and 28,447,652.80 is: 42,671,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,563,966.40 : 119,345,949.60 = 28,447,652.80 : x
  2. Step 2: Convert to fraction form
    79,563,966.40/119,345,949.60 = 28,447,652.80/x
  3. Step 3: Cross multiply
    79,563,966.40x = 119,345,949.60 × 28,447,652.80
  4. Step 4: Simplify right side
    79,563,966.40x = 3,395,112,137,307,099
  5. Step 5: Solve for x
    x = 3,395,112,137,307,099/79,563,966.40
  6. Step 6: Final answer
    x = 42,671,479.20

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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.