Home / 73,218,549.45-101,043,141.48-40,178,509.52

Finding the Fourth Proportional to 73,218,549.45, 101,043,141.48 and 40,178,509.52

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Solution

The fourth proportional to 73,218,549.45, 101,043,141.48 and 40,178,509.52 is: 55,447,189.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,218,549.45 : 101,043,141.48 = 40,178,509.52 : x
  2. Step 2: Convert to fraction form
    73,218,549.45/101,043,141.48 = 40,178,509.52/x
  3. Step 3: Cross multiply
    73,218,549.45x = 101,043,141.48 × 40,178,509.52
  4. Step 4: Simplify right side
    73,218,549.45x = 4,059,762,821,683,994.50
  5. Step 5: Solve for x
    x = 4,059,762,821,683,994.50/73,218,549.45
  6. Step 6: Final answer
    x = 55,447,189.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.