Home / 103,078,852-142,245,191.28-56,668,768

Finding the Fourth Proportional to 103,078,852, 142,245,191.28 and 56,668,768

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Solution

The fourth proportional to 103,078,852, 142,245,191.28 and 56,668,768 is: 78,200,907.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,078,852 : 142,245,191.28 = 56,668,768 : x
  2. Step 2: Convert to fraction form
    103,078,852/142,245,191.28 = 56,668,768/x
  3. Step 3: Cross multiply
    103,078,852x = 142,245,191.28 × 56,668,768
  4. Step 4: Simplify right side
    103,078,852x = 8,060,859,743,761,943
  5. Step 5: Solve for x
    x = 8,060,859,743,761,943/103,078,852
  6. Step 6: Final answer
    x = 78,200,907.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.