Home / 123,030,980.80-184,298,465.40-76,831,043.20

Finding the Fourth Proportional to 123,030,980.80, 184,298,465.40 and 76,831,043.20

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Solution

The fourth proportional to 123,030,980.80, 184,298,465.40 and 76,831,043.20 is: 115,091,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,030,980.80 : 184,298,465.40 = 76,831,043.20 : x
  2. Step 2: Convert to fraction form
    123,030,980.80/184,298,465.40 = 76,831,043.20/x
  3. Step 3: Cross multiply
    123,030,980.80x = 184,298,465.40 × 76,831,043.20
  4. Step 4: Simplify right side
    123,030,980.80x = 14,159,843,356,841,106
  5. Step 5: Solve for x
    x = 14,159,843,356,841,106/123,030,980.80
  6. Step 6: Final answer
    x = 115,091,688.82

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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.