Home / 78,035,070.06-107,686,987.38-43,227,652.86

Finding the Fourth Proportional to 78,035,070.06, 107,686,987.38 and 43,227,652.86

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Solution

The fourth proportional to 78,035,070.06, 107,686,987.38 and 43,227,652.86 is: 59,653,380.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,035,070.06 : 107,686,987.38 = 43,227,652.86 : x
  2. Step 2: Convert to fraction form
    78,035,070.06/107,686,987.38 = 43,227,652.86/x
  3. Step 3: Cross multiply
    78,035,070.06x = 107,686,987.38 × 43,227,652.86
  4. Step 4: Simplify right side
    78,035,070.06x = 4,655,055,708,001,841
  5. Step 5: Solve for x
    x = 4,655,055,708,001,841/78,035,070.06
  6. Step 6: Final answer
    x = 59,653,380.26

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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.