Home / 80,224,699.69-120,302,007.05-28,392,075.28

Finding the Fourth Proportional to 80,224,699.69, 120,302,007.05 and 28,392,075.28

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Solution

The fourth proportional to 80,224,699.69, 120,302,007.05 and 28,392,075.28 is: 42,575,711.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,224,699.69 : 120,302,007.05 = 28,392,075.28 : x
  2. Step 2: Convert to fraction form
    80,224,699.69/120,302,007.05 = 28,392,075.28/x
  3. Step 3: Cross multiply
    80,224,699.69x = 120,302,007.05 × 28,392,075.28
  4. Step 4: Simplify right side
    80,224,699.69x = 3,415,623,640,356,730.50
  5. Step 5: Solve for x
    x = 3,415,623,640,356,730.50/80,224,699.69
  6. Step 6: Final answer
    x = 42,575,711.14

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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.