Home / 78,801,082,062.48-118,319,571,104-68,210,153,805.76

Finding the Fourth Proportional to 78,801,082,062.48, 118,319,571,104 and 68,210,153,805.76

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Solution

The fourth proportional to 78,801,082,062.48, 118,319,571,104 and 68,210,153,805.76 is: 102,417,326,412.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801,082,062.48 : 118,319,571,104 = 68,210,153,805.76 : x
  2. Step 2: Convert to fraction form
    78,801,082,062.48/118,319,571,104 = 68,210,153,805.76/x
  3. Step 3: Cross multiply
    78,801,082,062.48x = 118,319,571,104 × 68,210,153,805.76
  4. Step 4: Simplify right side
    78,801,082,062.48x = 8,070,596,143,235,397,058,560
  5. Step 5: Solve for x
    x = 8,070,596,143,235,397,058,560/78,801,082,062.48
  6. Step 6: Final answer
    x = 102,417,326,412.30

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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.