Home / 90,286,899.96-124,641,763.02-57,280,890.36

Finding the Fourth Proportional to 90,286,899.96, 124,641,763.02 and 57,280,890.36

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Solution

The fourth proportional to 90,286,899.96, 124,641,763.02 and 57,280,890.36 is: 79,076,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,286,899.96 : 124,641,763.02 = 57,280,890.36 : x
  2. Step 2: Convert to fraction form
    90,286,899.96/124,641,763.02 = 57,280,890.36/x
  3. Step 3: Cross multiply
    90,286,899.96x = 124,641,763.02 × 57,280,890.36
  4. Step 4: Simplify right side
    90,286,899.96x = 7,139,591,161,825,722
  5. Step 5: Solve for x
    x = 7,139,591,161,825,722/90,286,899.96
  6. Step 6: Final answer
    x = 79,076,711.74

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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.