Home / 18,430,108.95-25,438,609.65-10,697,642.40

Finding the Fourth Proportional to 18,430,108.95, 25,438,609.65 and 10,697,642.40

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Solution

The fourth proportional to 18,430,108.95, 25,438,609.65 and 10,697,642.40 is: 14,765,683.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430,108.95 : 25,438,609.65 = 10,697,642.40 : x
  2. Step 2: Convert to fraction form
    18,430,108.95/25,438,609.65 = 10,697,642.40/x
  3. Step 3: Cross multiply
    18,430,108.95x = 25,438,609.65 × 10,697,642.40
  4. Step 4: Simplify right side
    18,430,108.95x = 272,133,149,188,889.16
  5. Step 5: Solve for x
    x = 272,133,149,188,889.16/18,430,108.95
  6. Step 6: Final answer
    x = 14,765,683.15

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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.