Home / 79,563,965.40-119,345,948.10-28,447,651.80

Finding the Fourth Proportional to 79,563,965.40, 119,345,948.10 and 28,447,651.80

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Solution

The fourth proportional to 79,563,965.40, 119,345,948.10 and 28,447,651.80 is: 42,671,477.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,563,965.40 : 119,345,948.10 = 28,447,651.80 : x
  2. Step 2: Convert to fraction form
    79,563,965.40/119,345,948.10 = 28,447,651.80/x
  3. Step 3: Cross multiply
    79,563,965.40x = 119,345,948.10 × 28,447,651.80
  4. Step 4: Simplify right side
    79,563,965.40x = 3,395,111,975,289,671.50
  5. Step 5: Solve for x
    x = 3,395,111,975,289,671.50/79,563,965.40
  6. Step 6: Final answer
    x = 42,671,477.70

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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.