Home / 18,899,430.61-28,355,031.85-6,768,999.15

Finding the Fourth Proportional to 18,899,430.61, 28,355,031.85 and 6,768,999.15

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Solution

The fourth proportional to 18,899,430.61, 28,355,031.85 and 6,768,999.15 is: 10,155,606.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899,430.61 : 28,355,031.85 = 6,768,999.15 : x
  2. Step 2: Convert to fraction form
    18,899,430.61/28,355,031.85 = 6,768,999.15/x
  3. Step 3: Cross multiply
    18,899,430.61x = 28,355,031.85 × 6,768,999.15
  4. Step 4: Simplify right side
    18,899,430.61x = 191,935,186,490,872.94
  5. Step 5: Solve for x
    x = 191,935,186,490,872.94/18,899,430.61
  6. Step 6: Final answer
    x = 10,155,606.82

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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.