Home / 28,430,817.80-42,646,351.64-9,000,139.25

Finding the Fourth Proportional to 28,430,817.80, 42,646,351.64 and 9,000,139.25

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Solution

The fourth proportional to 28,430,817.80, 42,646,351.64 and 9,000,139.25 is: 13,500,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430,817.80 : 42,646,351.64 = 9,000,139.25 : x
  2. Step 2: Convert to fraction form
    28,430,817.80/42,646,351.64 = 9,000,139.25/x
  3. Step 3: Cross multiply
    28,430,817.80x = 42,646,351.64 × 9,000,139.25
  4. Step 4: Simplify right side
    28,430,817.80x = 383,823,103,166,157.19
  5. Step 5: Solve for x
    x = 383,823,103,166,157.19/28,430,817.80
  6. Step 6: Final answer
    x = 13,500,248.42

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1.5x scale

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.