Home / 72,918,978.60-109,360,971.90-42,147,013.80

Finding the Fourth Proportional to 72,918,978.60, 109,360,971.90 and 42,147,013.80

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Solution

The fourth proportional to 72,918,978.60, 109,360,971.90 and 42,147,013.80 is: 63,210,408.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,918,978.60 : 109,360,971.90 = 42,147,013.80 : x
  2. Step 2: Convert to fraction form
    72,918,978.60/109,360,971.90 = 42,147,013.80/x
  3. Step 3: Cross multiply
    72,918,978.60x = 109,360,971.90 × 42,147,013.80
  4. Step 4: Simplify right side
    72,918,978.60x = 4,609,238,391,850,712
  5. Step 5: Solve for x
    x = 4,609,238,391,850,712/72,918,978.60
  6. Step 6: Final answer
    x = 63,210,408.05

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