Home / 1,242,163,944.90-1,861,663,404.15-660,177,000.90

Finding the Fourth Proportional to 1,242,163,944.90, 1,861,663,404.15 and 660,177,000.90

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Solution

The fourth proportional to 1,242,163,944.90, 1,861,663,404.15 and 660,177,000.90 is: 989,424,437.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,163,944.90 : 1,861,663,404.15 = 660,177,000.90 : x
  2. Step 2: Convert to fraction form
    1,242,163,944.90/1,861,663,404.15 = 660,177,000.90/x
  3. Step 3: Cross multiply
    1,242,163,944.90x = 1,861,663,404.15 × 660,177,000.90
  4. Step 4: Simplify right side
    1,242,163,944.90x = 1,229,027,362,837,031,680
  5. Step 5: Solve for x
    x = 1,229,027,362,837,031,680/1,242,163,944.90
  6. Step 6: Final answer
    x = 989,424,437.80

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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.