Home / 85,212,985.20-127,819,477.80-52,901,372.40

Finding the Fourth Proportional to 85,212,985.20, 127,819,477.80 and 52,901,372.40

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Solution

The fourth proportional to 85,212,985.20, 127,819,477.80 and 52,901,372.40 is: 79,352,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,212,985.20 : 127,819,477.80 = 52,901,372.40 : x
  2. Step 2: Convert to fraction form
    85,212,985.20/127,819,477.80 = 52,901,372.40/x
  3. Step 3: Cross multiply
    85,212,985.20x = 127,819,477.80 × 52,901,372.40
  4. Step 4: Simplify right side
    85,212,985.20x = 6,761,825,795,071,332
  5. Step 5: Solve for x
    x = 6,761,825,795,071,332/85,212,985.20
  6. Step 6: Final answer
    x = 79,352,058.60

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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.