Home / 103,078,849-142,245,187.14-56,668,765

Finding the Fourth Proportional to 103,078,849, 142,245,187.14 and 56,668,765

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Solution

The fourth proportional to 103,078,849, 142,245,187.14 and 56,668,765 is: 78,200,903.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,078,849 : 142,245,187.14 = 56,668,765 : x
  2. Step 2: Convert to fraction form
    103,078,849/142,245,187.14 = 56,668,765/x
  3. Step 3: Cross multiply
    103,078,849x = 142,245,187.14 × 56,668,765
  4. Step 4: Simplify right side
    103,078,849x = 8,060,859,082,417,681
  5. Step 5: Solve for x
    x = 8,060,859,082,417,681/103,078,849
  6. Step 6: Final answer
    x = 78,200,903.10

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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.