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Finding the Fourth Proportional to 55,908,009.60, 83,909,253.60 and 21,853,795.20

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Solution

The fourth proportional to 55,908,009.60, 83,909,253.60 and 21,853,795.20 is: 32,799,158.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,908,009.60 : 83,909,253.60 = 21,853,795.20 : x
  2. Step 2: Convert to fraction form
    55,908,009.60/83,909,253.60 = 21,853,795.20/x
  3. Step 3: Cross multiply
    55,908,009.60x = 83,909,253.60 × 21,853,795.20
  4. Step 4: Simplify right side
    55,908,009.60x = 1,833,735,643,559,262.50
  5. Step 5: Solve for x
    x = 1,833,735,643,559,262.50/55,908,009.60
  6. Step 6: Final answer
    x = 32,799,158.06

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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.