Home / 910,289,354.61-1,256,199,310.98-492,601,639.77

Finding the Fourth Proportional to 910,289,354.61, 1,256,199,310.98 and 492,601,639.77

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Solution

The fourth proportional to 910,289,354.61, 1,256,199,310.98 and 492,601,639.77 is: 679,790,263.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,289,354.61 : 1,256,199,310.98 = 492,601,639.77 : x
  2. Step 2: Convert to fraction form
    910,289,354.61/1,256,199,310.98 = 492,601,639.77/x
  3. Step 3: Cross multiply
    910,289,354.61x = 1,256,199,310.98 × 492,601,639.77
  4. Step 4: Simplify right side
    910,289,354.61x = 618,805,840,466,692,096
  5. Step 5: Solve for x
    x = 618,805,840,466,692,096/910,289,354.61
  6. Step 6: Final answer
    x = 679,790,263.76

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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.