Home / 81,495,378.60-122,248,972.80-49,077,477.60

Finding the Fourth Proportional to 81,495,378.60, 122,248,972.80 and 49,077,477.60

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Solution

The fourth proportional to 81,495,378.60, 122,248,972.80 and 49,077,477.60 is: 73,619,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,495,378.60 : 122,248,972.80 = 49,077,477.60 : x
  2. Step 2: Convert to fraction form
    81,495,378.60/122,248,972.80 = 49,077,477.60/x
  3. Step 3: Cross multiply
    81,495,378.60x = 122,248,972.80 × 49,077,477.60
  4. Step 4: Simplify right side
    81,495,378.60x = 5,999,671,224,215,009
  5. Step 5: Solve for x
    x = 5,999,671,224,215,009/81,495,378.60
  6. Step 6: Final answer
    x = 73,619,772.40

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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.