Home / 53,242,037.76-79,871,881.18-18,689,474.30

Finding the Fourth Proportional to 53,242,037.76, 79,871,881.18 and 18,689,474.30

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Solution

The fourth proportional to 53,242,037.76, 79,871,881.18 and 18,689,474.30 is: 28,037,309.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,242,037.76 : 79,871,881.18 = 18,689,474.30 : x
  2. Step 2: Convert to fraction form
    53,242,037.76/79,871,881.18 = 18,689,474.30/x
  3. Step 3: Cross multiply
    53,242,037.76x = 79,871,881.18 × 18,689,474.30
  4. Step 4: Simplify right side
    53,242,037.76x = 1,492,763,470,606,263.75
  5. Step 5: Solve for x
    x = 1,492,763,470,606,263.75/53,242,037.76
  6. Step 6: Final answer
    x = 28,037,309.12

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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.