Home / 38,676,864.60-53,374,100.40-21,274,533.72

Finding the Fourth Proportional to 38,676,864.60, 53,374,100.40 and 21,274,533.72

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Solution

The fourth proportional to 38,676,864.60, 53,374,100.40 and 21,274,533.72 is: 29,358,871.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,676,864.60 : 53,374,100.40 = 21,274,533.72 : x
  2. Step 2: Convert to fraction form
    38,676,864.60/53,374,100.40 = 21,274,533.72/x
  3. Step 3: Cross multiply
    38,676,864.60x = 53,374,100.40 × 21,274,533.72
  4. Step 4: Simplify right side
    38,676,864.60x = 1,135,509,098,734,465.50
  5. Step 5: Solve for x
    x = 1,135,509,098,734,465.50/38,676,864.60
  6. Step 6: Final answer
    x = 29,358,871.52

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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.