Home / 21,430,853.80-32,146,280.70-5,474,501.80

Finding the Fourth Proportional to 21,430,853.80, 32,146,280.70 and 5,474,501.80

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Solution

The fourth proportional to 21,430,853.80, 32,146,280.70 and 5,474,501.80 is: 8,211,752.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430,853.80 : 32,146,280.70 = 5,474,501.80 : x
  2. Step 2: Convert to fraction form
    21,430,853.80/32,146,280.70 = 5,474,501.80/x
  3. Step 3: Cross multiply
    21,430,853.80x = 32,146,280.70 × 5,474,501.80
  4. Step 4: Simplify right side
    21,430,853.80x = 175,984,871,555,455.25
  5. Step 5: Solve for x
    x = 175,984,871,555,455.25/21,430,853.80
  6. Step 6: Final answer
    x = 8,211,752.70

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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.