Home / 81,158,112,801.60-121,737,169,202.40-51,404,219,246.40

Finding the Fourth Proportional to 81,158,112,801.60, 121,737,169,202.40 and 51,404,219,246.40

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Solution

The fourth proportional to 81,158,112,801.60, 121,737,169,202.40 and 51,404,219,246.40 is: 77,106,328,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,158,112,801.60 : 121,737,169,202.40 = 51,404,219,246.40 : x
  2. Step 2: Convert to fraction form
    81,158,112,801.60/121,737,169,202.40 = 51,404,219,246.40/x
  3. Step 3: Cross multiply
    81,158,112,801.60x = 121,737,169,202.40 × 51,404,219,246.40
  4. Step 4: Simplify right side
    81,158,112,801.60x = 6,257,804,136,116,263,059,456
  5. Step 5: Solve for x
    x = 6,257,804,136,116,263,059,456/81,158,112,801.60
  6. Step 6: Final answer
    x = 77,106,328,869.60

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1.5x scale

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.