Home / 84,742,906.40-127,114,359.60-28,009,210.40

Finding the Fourth Proportional to 84,742,906.40, 127,114,359.60 and 28,009,210.40

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Solution

The fourth proportional to 84,742,906.40, 127,114,359.60 and 28,009,210.40 is: 42,013,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,742,906.40 : 127,114,359.60 = 28,009,210.40 : x
  2. Step 2: Convert to fraction form
    84,742,906.40/127,114,359.60 = 28,009,210.40/x
  3. Step 3: Cross multiply
    84,742,906.40x = 127,114,359.60 × 28,009,210.40
  4. Step 4: Simplify right side
    84,742,906.40x = 3,560,372,842,897,659.50
  5. Step 5: Solve for x
    x = 3,560,372,842,897,659.50/84,742,906.40
  6. Step 6: Final answer
    x = 42,013,815.60

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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.